The newly appointed teacher Rio feels fulfilled as a teacher, but she was worried that the class she was in charge of was on the verge of collapse. One day, she decided to call the students for an interview, and they asked her, "If you show us your breasts, we'll participate in class w." With the sole purpose of preventing the class from collapsing, she showed her breasts to the students... The naughty students, carried away, repeatedly rape her with their super-endurance gang rape circle!! The big-breasted female teacher's too big breasts are grabbed tightly, and she becomes the flesh masturbation object for all the male students!! "Ah... I shouldn't have shown them if it was just once..." It's too late now.