"...You passed. You should join my club..." A beautiful and elegant female teacher I fell in love with Jun at first sight. Hikaru She is invited to join the club and under the pretext of learning about femininity, her days of strict and lewd training and punishment from her teacher - her "big sister" begin. Hikaru, who even finds joy in the seductive and sadistic lesbian training, begins to seek punishment herself...Spanking, humiliation play during class, pleasure incontinence, strap-on training, wandering around naked, cleaning pussy after using the toilet, and other embarrassing lesbian training awakens Kokoro, and Jun, excited by this, also desires the student's body...The two of them become addicted to SM squirting lesbianism!!