Yūto Tonogawa (都乃河 勇人 Tonogawa Yūto) is a Japanese scenario writer working for the visual novel developing company Key under Visual Art's. He began working with Key on their sixth game Little Busters! and wrote the scenarios for two of the main heroines: Komari Kamikita, and Yuiko Kurugaya. He has also provided the lyrics to one of the ending themes from the same game, "Alicemagic", as his first job as a lyricist. Due to Jun Maeda stepping down as the main scenario writer for Key, Tonogawa will take Maeda's place as the main scenario writer starting with Key's seventh title; Maeda will still contribute with the music however.