A young woman named Rin, an exclusive performer at Presentage, relentlessly teases an older man. Every day, she visits her neighbor's hospital room, pretending to be making friendly visits while secretly observing him. She even once ejaculated on her skirt after masturbating and then sneakily rubbed his semen onto her clothes without being noticed. Unable to control her desires any longer, one day she successfully lures him back to her own hospital room. As he finally gets to touch her breasts, which are smaller than expected but still firm and perky, she whispers weakly for him to stop. However, her pussy overflows with love juices despite her protests. He brutally penetrates her tight hole and covers her face with his cum, leaving her looking disheveled. Despite this rough treatment, she continues to improve her sexual techniques through repeated encounters, eventually becoming addicted to the pleasure provided by the older man's advances. Watch as the innocent bookworm girl slowly descends into a world of carnal delight.