One day, when the college student Wataru returned home, he found his sister and her three beautiful OL coworkers having a drinking party. The charming older women took an interest in the innocent Wataru and began to seduce him one by one using their adult allure. He was made to dress up as a girl and have his dick played with, and while his passed-out sister lay beside him, he was raped in the cowgirl position—scenarios that any man would find thrilling！！
