A Forbidden Time: vol. 6
Yuki was responsible for tutoring 3 college friends. Ryo, Ri and Koji were regular college students, going to parties, playing their video games.B But the studying suddenly began...They tie Yuki with ropes and shut her mouth with a ball gag. In addition, these friends who were so eager to "study" brought out their own "toys" and started teasing her body. Then next came their own...Yuki resisted as her face flushed a bright red. However, her body mercilessly falls under control of these friends her body discovers these new pleasures.