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