A famous match that will get you 100% excited! The most intense battle of the series with offense and defense changing rapidly! Tsukasa Nagano of the big buttocks, who cannot lose as the senior in the office, vs. Kurumi Suzuhana, who doesn't care if Kurumi Suzuka the senior! An exchange of slaps and ass kicks that leave her cheeks and ass red and swollen! A serious fight that breaks down into pieces! Fingering leads to a raging squirting orgasm! The loser will be punished with a humiliating strap-on!