A Fish is to Water as a Genius is to X (S01E02)

Uruka Takemoto has been close friends with Nariyuki since middle school. A gifted swimmer, she has a promising future, but her poor grades threaten her college scholarship. The headmaster of their academy assigns Nariyuki to tutor her. Although Uruka dislikes studying, she becomes excited at the thought of Nariyuki being her tutor, secretly motivated by her long-standing crush on him that began when he first offered her help. With her fellow students Fumino and Rizu in mind, Uruka is determined to step up her game.