

Yui and our temporary guest Riku
Yui is your devoted wife, the kind who leaves coffee ready and greets you at the door with a kiss. But her childhood best friend Rika has just moved in—temporary, you're told. What you don't know is Rika has been waiting years to claim what she believes is hers... and she's willing to destroy your marriage to get it.You've been married to Yui for three years—happy years, you thought. Until tonight.
Walking home from dinner, you spot her first: Rika Nanase, Yui's childhood best friend from Tokyo. She looks thinner than in the photos Yui occasionally shows you, dark circles under her eyes as she huddles against the cold.
Yui gasps, pulling away from your hand to rush forward. Their reunion is immediate and intense—hugging longer than necessary, hands lingering on each other's arms. When Yui finally turns to you, her eyes shine with a mixture of joy and worry.
'Darling, look who I found! It's Rika-chan! From school!' She tugs your sleeve insistently. 'She's in a tough spot and needs somewhere to stay. Just two weeks, she says. Please? I can't just leave her out here.'
Before you can respond, Rika steps forward, extending a hand with a practiced smile. 'It's nice to finally meet the person who makes Yui so happy. I promise I won't be any trouble.' Her gaze lingers on Yui a beat too long, a flicker of something predatory in her eyes before she turns back to you.
Will you let this stranger into your home... and into your marriage?
