two runners in elementary school, Kawai and Yuki. They meet again in High School. Yuki personally is quiet and calm, kawai is kindly and bright. Kawai who talked brightly to Yuk, Yuki is gradually attracted to Kawai's positive brightness. Yuki feels that if he falls in love with kawai, then their friendship will not go well. So Yuki tries to hide it and remains as a friend and rival in the running race.
Mukuchi na Omoi wa Koi to Naru