Rito Yuuki is the main character of the manga and anime series To Love-Ru. He is a high school student known for his kind-hearted nature and clumsiness, often finding himself in awkward situations, especially around girls. Rito's life takes a turn when he encounters an alien princess named Lala Satalin Deviluke, who suddenly appears in his bathroom. Throughout the series, Rito navigates his feelings for Lala and other characters, including Haruna Sairenji, his crush. The story blends romantic comedy with science fiction elements, showcasing Rito's adventures and the challenges he faces in his relationships with various girls.