Anata o Ajiwaitai End

The following content is intended for mature audiences and may contain sexual themes, gore, violence and/or strong language. Discretion is advised. Plot: Mai is working part-time as a home tutor. Ritsu, her student's high school brother, tells her "Teach me too" and they learn using their bodies. Mai is completely addicted... First-rate pleasure is bittersweet. The end of that is...?!