52-year-old Miyoko Inaba. Lately, she's troubled by her son's gaze since he entered puberty. While she's doing housework, she notices him peeking from behind objects, his eyes slowly tracing from her nape down her back, along her thighs all the way to her toes, as if licking her body. That gaze is clearly not the way a son should look at his mother. Each time she feels his eyes on her, her groin heats up, and she finds it harder and harder to resist. For Miyoko, a single mother who's been alone for years, this attention has become a new, overwhelming sensation that shakes her entire body.