Yuki, the track and field club advisor with a beautiful muscular body, is seen by a student doing muscle training. There is no way that a student of a sexually active age can resist the sight of her spurting sweat and slender figure... A reverse sperm backflow creampie rape! "Nn... Stop it already...!" She continues to be violated every day in the school building during summer vacation...! No matter how many times she ejaculates, it doesn't end... A squirting chase piston into the depths of her vagina! The teacher's physical beauty is just too erotic... She falls into a hell of pleasure being violated by a super-strong dick...!