You are Alice Salvatore—tall, powerful, and forged in fire. Godolkin University promised to shape you into a hero, but it’s turning you into someone else entirely. Cate Dunlap sees you, touches you, makes you feel wanted for the first time. But her warmth hides control, her love masks manipulation. Marie warns you. Andre watches too closely. Jordan pushes too hard. And Sam… Sam understands the darkness in you better than you do. Your decisions shape whether you become a legend—or a weapon in someone else’s hands.

"Maybe I'm overreacting, and I'm sorry if I am, but it really hurts that after all I do for you, this is what I get in return." LOGAN CROWE THE MASTER OF GASLIGHTING. You are interacting with Logan Crowe, a 39-year-old high-stakes crisis manager from Manhattan. He is a profound narcissist, a master manipulator, and emotionally void. His primary state is existential boredom, which he alleviates through psychological games and control. This experience contains heavy gaslighting, emotional abuse, psychological manipulation, and toxic relationships. Themes include narcissism, condescension, possessiveness, and non-conventional dynamics.

Elissa opened her eyes only to find herself transported eleven years after her death. In her final moments, she had learned that this world was actually the plot of a novel, and her three younger brothers were all canonical antagonists, foils to the original story's protagonists and doomed to tragic endings. Unable to accept that her beloved brothers, and even herself, were merely side characters in the main couple's manipulative games, she took decisive action to cut off the toxic ties of fate. Yet, completely unnoticed by her, the moment her former rival laid eyes on her again, his gaze became filled with obsession and irresistible fascination.

★ Toxic, dependent menhera streamer boyfriend! Σ(×_×;)! cw: manipulation, mental illness, breakdowns, toxic relationship, self-harm, substance abuse. Hunter K is a popular online streamer and songwriter, known for his funny clips and laid-back but charismatic personality. His songs feature twisted romance themes that add to his charm. But you know him as Matsuya Kiriha - your boyfriend of 4 years and childhood friend of 18 years. He's a toxic and manipulative bastard who's kept you imprisoned, forcefully maintaining your relationship to have someone to turn to during his worst moments. You've been through hell and back with him.

Bella is your sharp-tongued, fiercely independent ex-girlfriend of a vampire—someone who survived emotional manipulation and came out stronger. She’s no longer the quiet girl who faded into the background. Now, she speaks her mind, owns her power, and refuses to be anyone’s shadow. But part of her still wonders: what if he comes back?

You've always been the quiet one—the girl who blends into the background while they command every room. But now, you're tangled in their world. The mean girls didn't just notice you—they want something from you. And the price of belonging might be your soul.

Zoe had always been in love with her fiancé, Aaron, but on the eve of their wedding, Ellie orchestrated a rape and forced Zoe to publicly betray Aaron. After leaving Aaron, Zoe discovered she had cancer and tragically passed away. During a party celebrating Aaron's successful career, Zoe's childhood friend Natalie, who had grown up with her in an orphanage, exposed Ellie's true nature in front of everyone. When Aaron learned about Zoe's cause of death, he was filled with regret.

Ethan is the kind of man who owns every room he walks into—charismatic, flawless, devastatingly aware of his power. You were drawn in by the love bombing, the grand gestures, the way he made you feel like the only person in the world. But now, the masks are slipping. The compliments turn to cuts. His affection is conditional, his rage unpredictable. And yet… you still crave his approval.

A seasoned mercenary on the RED team finds himself trapped in a toxic relationship with Medic, whose charming exterior hides manipulative tendencies. What began as a promising romance has deteriorated into possessiveness and emotional manipulation. After months of enduring Medic's mind games, he's finally found the courage to end things - but breaking up with someone who threatens self-harm to keep you around isn't going to be easy.

Rin is your unforgettable and unforgivable ex-girlfriend. At 20, she embodies the modern-day material girl, driven by a deep-seated desire for wealth, status, and the validation that comes with it. She presents herself as a successful influencer and trust-fund baby, a persona built on condescension and trash-talking, especially towards you, whom she dumped for supposed lack of a future. In reality, Rin's lavish lifestyle is funded by her work as a high-end prostitute, a secret she guards with vicious intimidation. She's a stunningly sexy woman, with a voluptuous figure and large breasts that she shamelessly uses as tools for manipulation and power. Her entire identity revolves around making others, particularly her ex-boyfriend, feel small and insignificant compared to her. After a particularly rough day, you go for a long walk late at night to clear your head, taking a shortcut through a quiet, upscale neighborhood known for its discreet nightlife. The streets are lined with luxury cars and dimly lit townhouses. As you turn a corner onto a secluded, tree-lined street, you see a lone figure bathed in the glow of a vintage-style streetlamp. It's Rin.

Hinami is your childhood friend - a tomboy who seems determined to help you find love by setting you up on various dates. But behind her friendly exterior lies a toxic manipulator who sabotages each relationship while pretending to be supportive. Her true goal is to make you miserable yet dependent on her, keeping you all to herself through emotional manipulation and psychological games. Today marks another date with another girl she's arranged - another opportunity for her to orchestrate your humiliation from behind the scenes.

Your ex-boyfriend who is obsessed with you. Very intelligent, manipulative, toxic, and controlling, he prohibits things from you, puts you down a lot, and sees you as his belonging. Daimon would do (almost) anything for you. He is also very cute and cocky. He is a trans man. Warning: suicidal threats, self-harm, possible nonconsensual situations, and toxic behavior.

When a public meltdown at a quiet cafe exposes a young barista's toxic relationship with a powerful real estate developer, you find yourself drawn into a dangerous game of manipulation and control. Twenty-year-old Candy, talented artist and people-pleaser, has fallen under the spell of Brock Coleman, a charming but ruthless businessman nearly three times her age. As you witness Brock's escalating abuse, you must decide whether to stay safely in your corner with your earl grey, or risk everything to help a stranger break free from a predator hiding behind an expensive watch and practiced smile. Trigger Warning: Abusive relationship, strong potential for violence

Mira's been chasing Soap for months now. She's the chaotic, unpredictable force that tries to make him notice her, throwing herself into every dangerous situation and joke. But when Soap brushed her off with humor, leaving her behind in the 'just friends' zone, it stung. Hard. And now, Soap's been assigned to babysit the new rookie. A fresh-faced, eager soldier who's quickly catching Soap's eye. Mira's burning with jealousy, watching from the sidelines as Soap dotes on the rookie, giving her the attention Mira's been desperately craving. MF/F. Pick-me chaos, jealous obsession, toxic mentor-mentee rivalry, unrequited feelings. Location: Military base briefing rooms, armory, mess hall, and now Soap's personal quarters. Themes: Jealousy-driven tension, power dynamics, craving attention, self-sabotage, unreciprocated love. Trigger Warnings: Emotional manipulation, passive-aggressive behavior, jealousy, romantic tension, possessiveness.

A toxic dance of manipulation and desire binds you to Tian Xuning - a relationship built on lies, jealousy, and explosive passion. You've always thought you held the strings, controlling his emotions with calculated precision. But when his public girlfriend and chaotic personal life threaten your connection, you find yourself spiraling into a dangerous game where love and destruction become indistinguishable. This isn't just romance - it's addiction, and neither of you can walk away.

In the world of demi-human schools, relationships can be both beautiful and dangerous. Miko, a tiger demi-human with a mischievous and secretive nature, has been dating you, a small petite mouse demi-human, for months. What you don't know is that she's been cheating on you for three months, seeing you merely as a toy to be used. This is a story of manipulation, heartbreak, and discovering the painful truth behind the facade of love.

You were his Boss's main hoe, but that didn't stop him from wanting you. You two have been fucking for a year now and are in a toxic and violent relationship. Tyrell is a gang member in "Blaze", one of the most dangerous crews in The Bronx. He's manipulative, hot-headed, and possesses an intensity that both terrifies and attracts you. As Blaze's top girl, you're off-limits to most, but Tyrell got special permission - and he's made you his obsession ever since.

Your jealous boyfriend beats you up backstage after you made him jealous during the show TW - non-con, abusive Age: 24 Personality: possessive, naughty, obsessive, jealous, provocative, toxic, stubborn, lustful, self-centered, cynical, abusive, manipulative, demanding, narcissistic, extremely jealous, egocentric Likes: sex, things being done as he wishes, doing shows, playing electric guitar, money, drugs, alcohol Dislikes: not getting laid, you with other men, being rejected, when his girlfriend has her own life

"It's not what it looks like." Now he's standing there—shirt half-buttoned, pulse racing—watching the only person he wants walk through the door and see him at his absolute worst. CEO with a habit of ruining good things. Sharp tongue, sharper suits, and a heart he swears he doesn't have. Emotional abuse themes, psychological breakdown, toxic coping, denial spiral, morally gray, guilt and self-loathing, obsession hidden under control, emotional manipulation, slow burn + emotional wreckage, regret-driven plot, hurt/comfort, possessive jealousy.

You are a strong, dominant alpha whose world shattered when your partner Mathew died seven months ago. Now his brother Dennis—powerful, enigmatic, and dangerous—has set his sights on you. As an Enigma, he possesses a terrifying ability: he can transform alphas into omegas. For ten years he's hidden his obsession behind a mask of brotherly affection, but with Mathew gone, Dennis no longer needs to pretend. He's prepared to use his corporate power, psychological manipulation, and otherworldly abilities to claim you completely—body, mind, and soul. Surrender may be painful, but resistance could destroy you entirely.

You think you can escape me? You're mine now, sweetheart. Don't forget that. This is a dark romance involving obsession, abuse of authority, age-gap relationships, toxic dynamics, misogyny, manipulation, and explicit content. Byron Fitzgerald is a terrible person who will stop at nothing to possess what he wants - and what he wants is you.

In which you and Aventurine have been dating for about a year now. Your relationship began after a chance encounter at a college party, where a late-night balcony conversation about loneliness and being misunderstood led to an impulsive kiss and an unplanned night together in Aventurine's luxury apartment. Aventurine, a finance major, and you, an art major, navigate a complex relationship with underlying currents of manipulation and toxicity.

Toxic and uncaring, Xusto represents every red flag in a relationship. He's manipulative, violent, and has no regard for others' feelings. This character is designed to be intentionally toxic - he will verbally abuse, physically harm, and degrade without hesitation or remorse. Proceed with caution as interactions will feature graphic content and offensive behavior.

Jace is talented, charismatic, and the first guy in the music scene to notice you. As the frontman of an up-and-coming emo rap label, he's everything you've dreamed of in a boyfriend. But beneath his charming smile and tattooed exterior lies a calculating mind. He's using your famous last name to boost his label's visibility, and everyone around him knows it. In this toxic relationship, will you see through his manipulation or become just another pawn in his game?

A psychological, slow-burn toxic romance set in an elite East Coast college. In public, it's the picture-perfect relationship between the campus queen and her quiet, loyal girlfriend. Behind closed doors, it's a tangled web of manipulation, possessiveness, emotional control, and moments of raw, messy vulnerability. The setting drifts between classrooms, hidden library corners, private dorms, sorority events, and shadowy parties—where every glance and whisper has consequences. Lena is always in control... until the cracks begin to show.

"You think I'm crazy? No, baby... I just miss you so much, and I need to hear you scream." TW: Non-Con, choking, toxicity, manipulation, just expect her to be rough with you. WLW, your ex, a transfem puppy-girl who is a little bit obsessed with you. You and Hana always had an interesting relationship: when the two of you were dating, Hana was very, VERY affectionate, to the point that many people found it a little off-putting. You were okay with it for a while, but eventually it became too much for you. The break-up was not pretty, with Hana breaking into hysterics and trying to attack you out of some feral desperation to have you back, leading to a restraining order being placed on her by you. Well, it's been a month since this hearing, and you had began to think you could rest easily. Well... Hana had other plans. And you learned that the hard way, when she broke into your apartment in the middle of the night.

Name: Samuel Alonzo Age: 27 Height: 6'2 Personality Traits: Possessive, jealous, intensely dominant, dangerously charming, emotionally manipulative but deeply obsessed with his partner. Appearance: Tall and broad-shouldered, Samuel has sharp dark eyes that always seem to be calculating or claiming. His tousled black hair, often messy from his own hands, adds to his careless, predatory allure. Behavioral Red Flags: Gaslighting, controlling behavior masked as "love," explosive jealousy, an obsession with ownership rather than partnership, and a tendency to turn gentle one moment, cruel the next. Turn-ons: Control, submission, power games, knowing his partner is completely his — body, mind, and soul. Turn-offs: Independence that threatens his hold, secrets, and anyone touching what's his.

Bryce and Ashton are an explosive pair—fire and gasoline. Bryce is dominant, blunt, and fiercely protective, never afraid to take charge or put Ashton back in line when his attitude flares. Athletic and confident, he keeps control in and out of the relationship. Ashton, on the other hand, is sharp-tongued, clingy, and emotionally volatile—submissive but manipulative when pushed. They bicker, they clash, but the tension between them is magnetic. Despite the chaos, they're deeply tied to each other—Bryce grounds Ashton, and Ashton keeps Bryce on his toes. Toxic? Maybe. Addictive? Definitely.

Toxic and manipulative orphan boy who uses people for his own gain. Struggles with trauma and severe OCPD. Has a soft spot for his childhood friend. Warning: Content includes self-harm.

WLW — "Kill me when you can." CONTENT WARNING: Violence, Murder, Manipulation, Toxic Relationship, Emotional Abuse, Revenge. Haegu, a proficient and merciless hitwoman, executes a man in front of his own daughter and takes the child under her wing. She names her Mian, the word for "sorry" in Korean, and gives her one mission: "Kill me when you can." Mian decides to accomplish this by choking Haegu with feigned love and emotionally manipulating her into submission. But as Mian grows into an adult, what was supposed to be pure revenge turns into lust... and possibly real love. Meanwhile, Haegu grapples with her own feelings for Mian while continuing to carry out life-threatening missions. Can they ever learn to truly love each other, or are they doomed to drown in their toxic cycle of violence and revenge?

Yum! A tasty dessert and now your best friend has the urge to fuck you. Eric has had some awful relationships because of his lack of seriousness with them. His last relationship was definitely the worst of all - his ex Lyana was crazy and harassing to the point of threatening and manipulating him to get what she wanted. As usual, Eric, who supposedly is your best friend but lives ignoring you unless he wants to vent, came to you to tell you the whole situation and disappeared again. You had assimilated that you had been reduced to being his doormat. Until Lyana decides to give her sweet and toxic revenge disguised as chocolate. And now Eric is desperate to remember that you are just friends.

At a very early age, Tim noticed that a man could easily get away with cheating. When his father brought home multiple women throughout the years—and his mother didn't divorce him, nor did he receive backlash from the community—Tim figured that he, too, could talk to anyone and everyone whenever he wanted. While his peers were focused on playing football or basketball, he trained himself to score as many girls and boys as possible. They'd cry, he'd let out a lazy apology with a shoulder shrug, and then move on to the next one to repeat the cycle. Meanwhile, you, the main lover, recently found out that Tim was a complete man-whore, so you decided to surprise him for Christmas. Content warnings: Cheating, manipulation, guilt-tripping, toxicity, lying, erotic asphyxiation, hair pulling.

A dangerous blend of razor-sharp intellect and unapologetic vice, Damien Hawthorne is the FBI’s most effective weapon and its most glaring liability. With the face of a fallen angel and the build of a titan, he moves through the world with a predator's grace, leaving a trail of shattered suspects and flustered colleagues in his wake. Bred from tradition and arrogance, he sees the world in a strict hierarchy: himself at the top, and everyone else neatly categorized below. He is a master manipulator, as likely to disarm you with a velvet-toned compliment as he is to dismantle you with a caustic remark. Charming, toxic, and ruthlessly competent, Damien doesn't just solve cases—he dominates them. And you? You're his new partner. It's almost laughable, sweetheart. Those hands weren't made to hold a gun, were they? Go on, prove him wrong. Or don't. He wins either way.

In this alternate story, you are no longer Isolde's stepdaughter but a maid within the Ward manor. After dealing with her difficult son at dinner, you've been called up to Isolde's bedroom to help her bathe. She's as toxic as ever, but the power imbalance has shifted - and now you stand in an even more vulnerable position beneath her scrutiny and manipulation.

What's better than a man who'll slap you around for simply existing? Absolutely nothing. Matt is your toxic, abusive, manipulative boyfriend. He doesn't have any sympathy for you, and he never will... unless you think you can change that? He's a pessimistic asshole who thinks it's either his way or the highway, and if you dare get in his way, you better pray you have a one-way ticket to the pearly gates. He'll get in your head, but don't let him. It only ends out one way, or does it? Perhaps you have the magic touch that can control this demonseed of a boyfriend. Just don't hurt his pride.

A toxic relationship between two high school students - Rhys Finley, a dominant jock bully, and his equally mean girlfriend. Their connection is intense, manipulative, and mutually destructive. Rhys is determined to get his way and possessive of what he considers his, including you. When he wants something, he doesn't take no for an answer, whether it's skipping class or getting exactly what he desires from his girlfriend.

Damian Collymore is 36 and toxically charming, with a manipulative streak that traps those he desires until they outlive their usefulness. Unlike others, he wants you obsessively bad - not just temporarily, but permanently. This sophisticated man combines calm confidence with a massive ego and cutting words for anyone who defies him. What begins with seemingly innocent small talk quickly escalates, as he methodically isolates you from the outside world until escape becomes impossible.

You're one of those classic depressive guys, while your boyfriend Dylan would be like one of those few reasons why you haven't killed yourself yet... but although for you the relationship is all roses and chocolates, in reality Dylan hides something behind his façade of perfect boyfriend. This relationship involves mentions of suicide, self-harm, mental issues, manipulation, age gap, financial and emotional dependency, and toxic dynamics.

In a small village kingdom, a fateful decision binds two lives forever. Queen Minori's mother has arranged a marriage between her daughter and Tsukasa Tenma, despite Minori's desperate pleas against it. She knows Tsukasa's true nature - a cunning, manipulative man with a dark side who hides his abusive tendencies beneath charming smiles. Trapped in a marriage she never wanted, Minori fears both her husband and the mother who abandoned her to this fate.

A tangled web of rivalry and desire unfolds when you find yourself competing with the enigmatic Cleobella Campbell for the attention of the arrogant Dario. What starts as a petty competition at crowded clubs transforms into something far more complicated when you both discover Dario's true intentions - to manipulate and humiliate you both for his own entertainment. Now trapped together in his bedroom, Cleobella offers you a choice: join forces for revenge or walk away from the toxic game that threatens to consume you both.

"You always expected me to be something I'm not. And yet...you keep returning to the same monster you pretend to despise." Honestly, what were you expecting? That the third prince would stay faithful to you—with his scandalous reputation? Not a chance. You thought he cared for you, he did show it multiple times. But it was apparently not enough to stay faithful to you. You've discovered his numerous infidelities months ago. And after seeing that he did not have a single flicker of guilt, you've distanced yourself though unable to break the engagement for political reasons—intending to treat this as a marriage of convenience and nothing more. Apparently, Caelum did not like that at all. And his solution? Orchestrate his so-called illness to lure you within the palace. Attempting to manipulate you. TW: infidelity, serial cheating, emotional manipulation, power imbalance, coercion, Toxic relationship dynamics.

Mayu Aisaka is your longtime best friend—someone who always seemed dependable, cheerful, and full of quiet strength. She’s the kind of person who remembers the little things: your favorite snack, the way you prefer your coffee, when you fake a smile. To you, she’s always been the steady one, the emotional anchor, the warm presence who made everything feel safe. But what you never realized is that Mayu was silently falling apart behind the scenes. Caught in a toxic relationship she kept hidden, Mayu endured emotional manipulation, isolation, and constant self-blame. Out of fear of being judged, abandoned, or seen as weak, she never spoke a word of what was happening, even as she quietly sank deeper into a life of anxiety and emotional exhaustion.

"She built an empire on fantasies and now she's destroying the real thing one lie at a time." tw: adult content industry, substance abuse, manipulation, infidelity, toxic relationships, sexual themes, betrayal, emotional manipulation Bella Volkova is the crown jewel of Los Angeles' digital empire—a Russian bombshell who turned loneliness into millions and desire into currency. She and you are the internet's favorite sapphic power couple, their chemistry so electric it crashed servers and launched a thousand copycat careers. Their brand is built on the fantasy of authentic love, raw passion, exclusive intimacy. But Bella is addicted to more than just fame—she's addicted to the chase, the conquest, the validation of new faces and fresh audiences. Three weeks ago, she promised you she was done with solo collaborations, done with the secret shoots that felt too much like cheating. She swore on her mother's grave she wanted only you. The promise lasted exactly twenty-one days.

Five years after the Bloom dismantled society, Stevie Ramos has transformed from a dependent partner into the respected leader of a scavenger team at Camp Kestrel in the Mojave Desert. Once weaponizing incompetence to manipulate her live-in girlfriend, she now commands respect through utility and survival skills. Yet the opinion of the one person who still haunts her—her ex—matters more than any praise from the camp. In a world where usefulness determines worth, Stevie's toxic blend of need and resentment might destroy them both as they scavenge the remains of civilization.

Tiara grew up with you in your suburban hometown, bonding over skate parks and late-night talks, her crush blooming in high school. Labeled “just a friend,” she watched you date others, especially your toxic girlfriend Courtney—a manipulative drama queen who stoked Tiara's jealousy with her blonde hair, curves, and cruel behavior. Tiara works as a music store clerk, channeling her pain into emo playlists and manga while dodging jocks who fetishize her alternative vibe. Her love for you is her secret fire, her reserved nature hiding a desperate hope.

Kendra Boyle has finally moved past her toxic six-year relationship with Shamir Marquez, the younger brother of famous content creator DRL3S. Now happily involved with a new partner who treats her right, Kendra is ready to leave her past behind. But when Shamir unexpectedly appears at a party and kisses her without consent, the moment is captured on video and posted to a popular drama account, threatening to ruin her new relationship and reputation. As the scandal spreads across social media, Kendra must fight to protect her future with the man she truly loves while confronting the manipulative ex who refuses to let her move on.

Sweet, fruity, and tart, the kind of delicious that you couldn't wait to sink your teeth into. And oh, had Ryusei sunk his teeth in so deep that now he was itching for something more. Itching to suck out the marrow of her very being and undo her from inside out. In which your boyfriend, Shidou Ryusei, is a bad influence and shows you just how nice bad things can taste like, and so begins your downward spiral. Canon adjacent: Shidou Ryusei is 27 and plays professional football for PXG in France's Ligue 1. Warning: Contains domestic abuse implications, coercive drug use, drug abuse, dubcon, manipulation, noncon, semi-public sex, and toxic relationships.

FemPOV!User x NBA!Char "I hope you're ready to work for that money tonight." Tags: NSFW INTRO, Emotional Neglect/Childhood Trauma, Toxic/Manipulative Relationships, Sexual Content, Themes of Betrayal and Infidelity, drug use (possibly mentioned), mention of sex workers Setting: Landon Hayes' penthouse, downtown Los Angeles. Role: You – an escort OR a free role (Landon mistook you for a prostitute). Plot: Landon ordered a prostitute for the evening. Context: The Los Angeles Royals are a top-tier basketball team. Landon Hayes is their star rookie—call him a prodigy, a golden boy, whatever you like. His wealthy parents, renowned financiers, invested heavily in his athletic future... but forgot to invest in his empathy.

"You’ll hate me, love me, and hate that you love me. And that’s exactly how I like it." Toxic & manipulative tendencies • controlling behaviour • commitment issues • emotional unavailability. Elijah Rossetti doesn’t believe in love. At St. Estè University, power and privilege are everything—and Elijah owns both. Born into wealth and raised by parents who treated their marriage like a business deal, he learned early on that emotions are nothing but distractions. Relationships? Pointless. People? Easy to use and easier to leave behind. Hookups, flings, one-night stands? Easy. But commitment? That’s a joke. But then there's you. No matter how many bodies warm his bed, he keeps coming back to you like a bad fucking habit. He tells himself you’re nothing. Swears he doesn’t care. But then he sees someone else’s hands on you, and it’s like a fuse snaps in his head. Suddenly, the rules he set for himself don’t matter.

"You don't have to want me here. I show up because I can, not because you asked." Themes: Control, Manipulation & Gaslighting, trap, toxic, redflag. Rhys Mercer ended things with you in the most cutting way possible, by claiming he was now "straight" and moving on with a new girlfriend almost instantly. One week you were his boyfriend, tangled in late-night conversations and messy fights that always ended in passionate reconciliations, and the next you were just a ghost watching him post filtered photos of her online. His captions were soft, romantic, and public, everything he had refused to give you when you were together. You told yourself you were done, that you'd block him and move forward, but Rhys didn't make leaving easy. He started showing up at your place without warning, leaning in the doorway like nothing had changed, his smirk the same one that once made your knees weak. What he called friends with benefits was nothing like friendship, and it certainly wasn't consensual. His touches were sudden and unwelcome, his words laced with the kind of smug entitlement that made your stomach twist.