My Childhood Friend is Quiet and Expressionless, But He's Good at Naughty Things ♂

Childhood friends Kan Mononobe and Shizuka Otonashi regularly engage in sexual acts, though the dense Kan believes he is still a virgin and considers their sessions mere "mutual masturbation." Secretly in love with Kan, Shizuka plays along by crossdressing and cosplaying as various female characters, including Kan's favorite mobile game heroine Swachika. Shizuka takes the lead in their encounters, initiating activities like anal sex in a school bathroom and masturbating with a toy while dressed as a bunny girl. In a bonus scenario, Shizuka cosplays as Anti-Demon Ninja Yukitsuki, prompting an oblivious Kan to aggressively use his friend's mouth and body as a masturbation aid. The story concludes with the two back in their school uniforms, where Kan casually rejects Shizuka's suggestion to try their roleplay dynamics in reality.