While masturbating at a manga cafe, Kousuke Sawahara was seen by his classmate Hirasaki-san at the moment of ejaculation. As an apology, he asks to watch her masturbate. However, it doesn't stop at just masturbation and escalates into sex! He wants to moan out loud but desperately holds back; this is his first time having sex! Such a Hirasaki-san gets hooked on doing it in places she shouldn't...?! On their first date at a karaoke bar, he can't hold back his desires and goes at it non-stop! A story of youth filled with love and ecstasy with a beautiful girl!
