Every summer break, Kazu-kun spends a week with his beloved uncle Tetsunosuke, who lives in a mountainside village and works as a textile maker. Yuubae ni Niji is the story of their colorful days.

Atsuki is a boy who lost his grandmother after being abandoned by his mother... It was my uncle, Yu, who took my hand, which no one had picked up. He also lost his wife Tsukiko and lives alone in the...