One day, shy high-school boy Kazuo Matsui comes across an old cardboard box with a litter of stray kittens inside. It is there he has a chance encounter with Kitahara, an antisocial elementary school student. Even though he seems unapproachable, Kazuo finds the boy intriguing. He adopts a kitten and hatches a plan to become friends with Kitahara. Soon, Kazuo finds the simple friendship transforming into something deeper. Is it love? Does Kitahara return Kazuo's feelings? Find out in this exciting love story from the versatile mind of Sumako Kari!