Yuna Hinano, 20 years old, is a slender beauty with eight heads and a former cheerleader who has participated in national competitions, but she really loves naughty things, but she is shy and has never met anyone. She says that the number of people she has experience with is extremely small, and that she usually comforts herself with naughty fantasies. However, when you listen to her story, you will find out that she is actually a masochistic girl who wants to be bullied, and enjoys her voluptuous sexual desire and exquisite body, which is completely different from that of a healthy athlete.