A promise made by Mayu, a private tutor, to her student Yuzuka. That was the trigger for her to become immersed in lesbian acts between women. A deep kiss... her pussy throbs with every kiss as they devour each other's lips and tongues, and her entire body becomes an erogenous zone with the relentless caresses. Come, come, come... she knows it's wrong, but it feels so good, she just can't stop it!