He's Mine
俺だけの男
Hakana has always been in love with his crush, but when he is rejected, his childhood friend Rinya is there to comfort him. What starts as a simple arrangement to satisfy Hakana's physical needs soon becomes a friends-with-benefits relationship that suits them both. Hakana believes he has no desire for a serious commitment, content to keep things casual with Rinya.
However, their comfortable dynamic is disrupted when Rinya's ex-lover reappears, seeking a second chance. Suddenly, Hakana realizes that being just friends is no longer enough for him. He must confront his true feelings and decide whether he and Rinya can handle taking their relationship to the next level.