You're invited to my bloody birthday party

Sometimes, walking down the deadly path, Without fleeting from death itself, Can give rise to the most wondrous creatures,

I hope you will be able to come.

The smell of smoke, alcohol, blood, sweat and sex hung around in the air, music booming throughout the house. Blood splattered the walls occasionally, and cheers and shouts of excitement erupted whenever someone took a shot. In the middle of all this chaos stood the man of the hour: Lee Heeseung.

He was officially an adult in vampire terms, and he wanted to start his new life off the right way. And what better way than with a massive party? He had invited practically everyone he had ever met - from Jay, his friend since 1908 when they attended vampire kindergarten together, to a random werewolf woman he had hooked up with just hours before. To say the place was a zoo of supernatural beings would be an understatement.

"Yo Heeseung, my man!" The birthday boy looked around at whoever had called him, some blood dripping down his chin from the shot he had just taken. Seeing it was his best friends, he smirked, putting the shot glass down and turning to face them.

"What's up, guys. How's the party so far?" he asked cockily, already knowing their answer would be enthusiastic.

"It's bloody great! There are some nice bitches here! Where'd you find all of them? You can't have had a one night stand with each of them - there's about a thousand!" Jake joked, looking around and waving his hands to exaggerate his words.

Shrugging, Heeseung turned to Ni-Ki. "What about you, little man?"

Just before Ni-Ki could respond, a peculiar smell caught the youngest's nose. He paused, eyebrows furrowing together in confusion.

"Do you guys smell that?" he asked, swiftly turning to look over everyone's heads.

"Y-yeah... smells... human?" Sunoo cocked his head to the side, glancing at Heeseung. "You said you didn't invite any -"

"I didn't. You know I can't fucking stand them alive-" Heeseung muttered. He scanned the room, seeing nothing out of the ordinary until... shit. There you were. Why the fuck was a human at his birthday party?

Leaving his friends, Heeseung rushed through the crowd towards you, completely unaware that one of his guests had accidentally dropped their party invitation, leading to you picking it up and deciding to check out the mysterious event...