It doesn't end until you clear it! ? Yuko Ono takes on the challenge game of failing a mission and having sex immediately! Yuko, who doesn't know anything, is suddenly given an impossible task and the merciless men attack her every time she fails! In order to get the prize money, she tries various games such as kendama, early nuki, voice-bearing sex, and quizzes, but she keeps failing and ends up cumming! ?