Deisui Kanojo

A high school boy spends Christmas night alone with a beautiful older woman from his neighborhood, who is also completely drunk and asks him to bring her snacks. Izumi Nanase is an attractive but lazy woman who enters his home uninvited, drinks often, and constantly teases him. She acts like a demanding older sibling, making her presence a hassle despite her good looks. The story is a romantic comedy about their interactions, focusing on a heroine who frequently drinks at home and lacks self-awareness.