■Kawakami Natami, a vengeful self-defense instructor

A man's student, Togashi, came to the self-defense class where Natami served as a lecturer. Togashi seemed to be foolish about self-defense, perhaps because he had originally been tinkering with martial arts, and it seemed that he was trying to show off his power by defeating Nanami. One day, when Togashi is giving a personal lesson, Natami unexpectedly sucks her breast and throws him away reflexively. Instead of apologizing, Togashi who had been defeated came to Natami again with her niece.