Hito Natsu no Kids Game

Hito Natsu no Kids Game (ひと夏のKIDSゲーム, Hito Natsu no KIDS Gēmu) is Ken Akamatsu's short debut manga. It stars Shinya Matsumoto, a high school student who witnesses Reiko Kirisima and her son, Daisuke, in a car accident. Reiko is hospitalized and Shinya decides to look after Daisuke, which causes him to meet Reiko's little sister, Yuki.