DASS-998 - Thought My Nephew Was a Boy, Turns Out She's a Hottie: 4 Days of Non-stop Teasing Leads to a Hard Lesson

Keisuke takes in his relative Sumire for four days after a moving mishap, fully expecting a boy. When the truth comes out that she’s actually a gorgeous girl, the dynamic shifts. Sumire starts teasing him relentlessly about his 'tastes,' leading to a wild four-day experience that ends with an unexpected cohabitation arrangement.