My Favorite Idol Might Be in Love with Me!! -I Never Expected to Have Sex with Him-

A devoted fan named Kairi can't even watch his beloved idol Rin perform anymore because his feelings have grown too intense. Then fate throws them together as stepbrothers, and things escalate quickly when Rin starts whispering in his ear while touching him intimately. What started as pure admiration turns into something far more physical than Kairi ever imagined.