Since childhood, Tomoko's abnormally developed and large breasts had always drawn lewd stares from those around her. One day, she came across an online ad for a mysterious salon claiming that a special oil-based mammary massage could reduce breast size—and curiosity led her to step inside. But this was no ordinary massage parlor; it was a corrupt establishment run by a perverted old man. There, her sensitive, soft 100cm bust is vigorously groped and kneaded, forcing her to climax shamefully with milky orgasms. This work depicts the awakening of a beautiful girl's erogenous breast zones, exploring both the allure of large breasts and the dark story behind them.