Uruka is an active girl and excellent in sports, especially swimming. However, she is appalling in all academic subjects, and very reluctant to study. Once she is studying difficult topics, she burns out easily.She is friendly and has good relationships with all of the main characters. She expresses likes and dislikes very easily, often makes Nariyuki unready to understand.She loves Nariyuki  since middle school and is willing to study English when Nariyuki helps her to meet admission requirements for English for the Otowa Sports University.