Kimi to Natsu no Himitsu
Synopsis
Summer comes around again, and Sho is back at his hometown, where his older cousin Natsuka lives. Both of them have been close since childhood, but what happens when Natsuka finds a naughty comic lying around? (Source: Irodori Comics)
Background
Kimi to Natsu no Himitsu was published digitally in English as Our Summer Secret by Irodori Comics.