These stories revolve around Kouichi Aihara. Every volume stars Kouichi and another girl who each share a romantic story.

Volume 1 = Mao and Kouichi
Volume 2 = Asuka and Kouichi
Volume 3 = Mitsuki and Kouchi
Volume 4 = Eriko and Kouichi
Volume 5 = Yuumi and Kouchi

Each story is seperate from each other.