Yuuki Rito is your average high schoolstudent-awkward, shy, and hopeless when it comes to confessing his feelings tothe girl of his dreams. But one day, a beautiful woman suddenly materializes inhis bathtub! Her name is Lala Deviluke, an alien princess on the run from anintergalactic empire. After Rito gets unwittingly engaged to Lala, he soon findshimself sucked into a battle for Lala's affections, as alien suitors from acrossthe galaxy vie for her hand in marriage. Rito's troubles have only justbegun!