Office lady Satomi was constantly criticized by her boss for her poor handwriting, repeatedly molested on her way home from work, and told by her boyfriend that she had gained weight. Fed up with her miserable routine, she decided to enroll in a cultural school to improve herself. She started with a calligraphy class, where her instructor's close, hands-on guidance made her heart race, gradually awakening intense sexual feelings within her. Next, she joined a self-defense course to learn how to handle molesters, but found herself aroused during the reenactment drills, surprised by just how sensitive her body had become. Finally, in a weight-loss walking class, she swayed her hips provocatively without caring about accidental upskirt exposures, her growing erotic confidence shining through each seductive step.