Kiss to, Sore kara

Yuu is a typical student hoping to have a girlfriend and experience romantic milestones like dating, holding hands, hugging, and kissing. His friends suggest he try these things with his childhood friend Chiharu, not realizing Chiharu is male. When Yuu brings this up, Chiharu finds the idea amusing and suggests they "play lovers." Though Yuu is upset that Chiharu is playing along, they begin with light physical contact. As the interactions progress, Chiharu's kisses grow more passionate, leading to a growing sense of tension between them.