サーシャ

Likes: Misaki, alcohol
Dislikes: Cutting corners
Hobbies: Music appreciation and similar things

The only girl who lives with Kenji that isn't engaged to marry him since she's actually Misaki's maid. This breaks Misaki's rule that only girls who are engaged to marry Kenji may live with him. So Haruka pushes Kenji into her breasts, ruining her for marriage and forcing him to propose to her because she thinks it's funny, thus making Sasha also his fiancée.