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."