On her 20th birthday, Hina Kinami has grown from H-cup to I-cup, her bouncy, explosive breasts matching her increasingly depraved and lustful personality. With growing experience as an AV actress, each shoot intensifies the sexual desires she once suppressed, transforming them into overwhelming urges that fuel her innate nymphomania. She hates pain and is already used to being tied up, but her craving for humiliating play—especially having her proud, massive tits obsessively teased and tormented—grows stronger by the day. Deep down, she can't suppress the urge to experience such treatment immediately. "Gain, please fulfill my perverted masochistic desires." In a rare reversal, the request came from the actress herself through the production company, revealing an insatiable, greedy curiosity and demand for sexual fulfillment. Unable to control her intense, abnormal lust, Hina Kinami falls into Gain Corporation's signature humiliation and degradation training. Here is her private record of lewd, shameful acts—her true face as a depraved female masochist fully exposed! At 20, Hina's deviance has reached new heights, promising even greater excitement to come!!