[Reducing Mosaic]BBAN-520 After school... a secret between two people. Reverse role lesbian The little devil junior teases the masochistic senior Sandatsu Ena Yayoizuki

Two close friends living in the same girls' dormitory, senior Mizuki and junior Ena. Due to a strange turn of events, Ena's little devilish pranks begin, revealing Mizuki's hidden M nature. From then on, after school, Mizuki is taken around by Ena, experiencing a role reversal as a lesbian slave, gradually becoming immersed in the pleasures of lesbianism both physically and mentally. Our secret master-servant relationship... this is the shape of our youth.