Rina, a kind-hearted college student who is diligent in rescue cat activities, decided to offer her body to an old man who likes big breasts because she was struggling financially... The old man's abnormal 'boob harassment', tickling restraint, aphrodisiac oil, nipple torture, breasts shaking wildly during sex... While bewildered, Rina drowns in unknown pleasure and her rationality collapses. This is a record of the depravity that a certain college student has reached, and how she is dominated by desire in the name of support and big breast training.
