"One Summer's Kids' Game") is a short, debut manga work[1][2][3] by Ken Akamatsu, the creator of Love Hina.
[4] The narrative revolves around a high school student named Shinya Matsumoto and his love story, which takes place in the summer vacation.
Reiko’s younger sister, Yuki Kirishima, visits the hospital but she turns out to be Shinya’s classmate and love interest.
Shinya suggests that he will provide room for Daisuke to live and Yuki visits his house on regular basis to care for them.
The original title is Natsuyasumi Dake no Pearentsu (夏休みだけのペアレンツ), which means "summer vacation only parents".