Gym no Oniisan ga Ecchi Sugiru!!: Ore to Yoru no Renshuu mo Shichaimasu?

"You're so skinny, you look like one of my girl friends..." Rejected by the girl he likes, Yuto, at the recommendation of a friend, goes to the gym. There, he meets a hot personal trainer, Kyoya. In the middle of a personal training session, the sexy Kyouya plays with Yuto's chest, and Yuto's body temperature shoots up as the two come within kissing distance...! On top of that, he gets a boner, for some reason...! Kyouya, meanwhile, sits in bed thinking about how to win over the cute, but straight, Yuto... Thus begins the start of an intimate love training session between a straight college student and his gym trainer!

(Source: Mobile Media Research)