The story of To Love-Ru revolves around Rito Yūki, a high-school student who cannot confess to the girl of his dreams, Haruna Sairenji. One day when coming home and sulking in the bathtub, a mysterious, nude girl appears out of nowhere. Her name is Lala and she comes from the planet Deviluke, where she is the heir to the throne. Her father wants her to return to her home planet so she can marry one of the husband candidates. But she decides that she wants to marry Rito in order to stay on Earth. Her father decides that, if Rito is able to protect Lala from her fiancés, then he can marry her. However, if Rito cannot protect Lala from her other fiancés and meet the king's expectations, Lala's father will kill Rito and destroy the Earth, thus putting Rito in a difficult situation especialy wi