[Tetsuya] Kawaasobi (Autumn Has Come) [Full Color]

A boy spending summer at his grandmother's house joins three neighbor girls at a shallow creek, where they peel down to swimsuits—and less—and tease him to strip bare and wade in with them. After they drag him into the water soaked and giggling, a whole season of pent-up longing erupts on the walk home, leaving him grinding against a girl's discarded pants hidden in the bushes before slipping back in borrowed girl's clothing. A soothing bath stirs one last aching hardness, and he grins around it, calling it a really nice summer.