Black and White, two boys who do not know their parents, are living and stealing in Takaramachi, a town where righteousness and the yakuza are prevalent. Then the topic of town redevelopment comes up: the construction of a "children's castle," the purpose of which is unclear. As Takaramachi changes, Black and White's destiny also begins to change.
Hoshinoko Gakuen is a combination group home/orphanage facility. The foster children of Hoshinoko Gakuen struggle with both the everyday issues of growing up and those specific of being abandoned or orphaned children. Their only way out from their situation is the Sunny, a dilapidated old car in the front lawn of the home.
Cats are quietly living in the attic of the Louvre Museum. For their own safety, the cats live in such a way that humans cannot find them. However, one white cat is so fascinated by the paintings that he shows up at the museum, even ignoring the cat's rules. And he occasionally enters the paintings.
This sports manga depicts the struggles and growth of those who devote their youth to table tennis, centering on Peko a.k.a. Hoshino, who has a genius sense of table tennis but is overconfident and self-defeating, and his best friend Smile a.k.a. Tsukimoto, who has a certain ability hidden behind his quiet expression.
