Famous actress Ishihara Rina challenges 'first machine vibrator,' 'first triangular horse,' and 'first black sex'! The appearance of a new female teacher excites the male students. A plan for violation is devised, and Rina is trained with electric massagers and machines. She squirts multiple times, and her reason collapses from aphrodisiac herbs. She mounts men herself, inserting multiple erect penises, and receives the semen of the entire class, with turbid fluid overflowing from her vagina!
