Natsu Tojo stars in an SM-themed release centered around bondage and exposure. Intrigued after discovering an SM magazine by chance, she begins to experience pleasure from being tied up and watched. The film portrays her indulging in secretive outdoor masturbation, fueled by shame and arousal. One day, while engaging in an exposure act at school, she's caught by a middle-aged janitor who exposes her further—and introduces her to the pleasure of sex. This incident becomes a turning point, driving her into increasingly extreme exhibitionism. Scenes depict her shamelessly exposing herself in various locations across the school, including the library and cafeteria. The narrative unfolds as a training-style journey, blending masochistic pleasure with the thrill of public exposure.