Mari, a fan of the underground idol Haruna, placed a dildo on the crotch of Haruna's poster and enjoyed a SEX fantasy with her today. One day, Mari, who had infiltrated Haruna's dressing room, witnessed the indecent milk rubbing act between Manager Kuroki and Haruna. MARI herself tried to stop it, but instead, she was stabbed in the back of the vagina with a strap. Kuroki sensed that Mari was overwhelmed and debuted as an idol, but... Intense pressure and excessive physical relations. Female director Haruna's strap play!