Miko hates studying and her grades aren't improving, so her parents hire a serious tutor, Kenichi, to help her. However, instead of studying, Miko lounges on the sofa constantly playing with her smartphone. Kenichi can't help but glance at the gap in her skirt, caught by her careless posture. Miko secretly records his furtive look on her phone, gaining leverage over him. Using her mischievous, seductive provocations and commands, she gradually draws Kenichi in. Before he realizes it, his hidden masochistic tendencies surface, and he becomes Miko's devoted, obedient pet.