The bikini model Sayuki Nagumo is going to take part in a certain Internet TV channel's live show called "Breaking the Limits of Bust Enhancement in 24 Hours!" She's aware that it's going to be slightly erotic content, but it turns out to be far more extreme than she anticipated. When they're off air, the staff give her boobs intense massages and use oils to increase her sensitivity. When they're on air, she's getting touched by the female announcer as if she's some kind of show and tell or being forced to ride a weird rodeo machine that stimulates her crotch. Even during her break, she's left alone with vibrators attached to her nipples and assaulted by the female assistant directors in the break room. She's even suddenly thrown into a match against a martial arts master who's keeping her in holds while making her cum... And once her boobs have been played with like toys to bring their sensitivity to its limit, Sayuki's body is ready for the grand finale...