A high school girl who wants to participate in the 'ochinchin' research challenge and adult erotic experiences learns about the joy of being a woman through two sexual encounters over several days. She understands the pleasure of being a woman through this sexual experience... And the girl who knows men grows rapidly, becoming a 'female' seeking pleasure. Thrusts reaching the cervix! Tortured by two adults, the pure high school girl undergoes a complete transformation!
