Natsu no Yari Naoshi

From the sight of the sun beaming through the bright blue sky to the smell of green grass to the sound of hot, sweaty sex, summer carries a lot of memories. When Keito goes back to his hometown in the countryside for the first time in years, he's met with those memories in the flesh — his two childhood friends, Suiren and Aoi, but this time, they might want to be more than friends.
(Source: Irodori Comics)