Fiance Wa Monster!?フィアンセはモンスター!?; 妖怪之瞳; 我爱Monster!?; 魔法王子是主人; Fiancé wa Monster!?; Hoshi no - W - Oujisama; Hoshino W Oujisama; My Fiancé is a Monster!?; Dua Pangeran Bintang; Tunanganku Monster?!

Hitomi Miku goes to live in a mysterious house where she meets Rauto, the young and sexy master of the house. There she discovers that the house is full of monsters! Rauto gives her a special necklace and she suddenly transforms and knocks out an evil monster who possesses a girl! What's going on? Becoming Rauto's maid and fiancé? "I'll knock out everyone's heart."