Peeping in the bath, which is also a man's dream. Even though he thinks that he shouldn't do such a thing, adolescent Koji has become accustomed to peeping at his mother-in-law, Hikari's naked body while taking a bath. Hiroji was looking at Hikari as she soaked in the bathtub as usual. Then, Hikari begins to grope her crotch, not knowing that she is being watched because her father is not on a business trip. Excited to see his mother-in-law's stupidity for the first time, Koji accidentally makes a noise. Hikari becomes furious when he realizes that he was being watched. However, Hiroji was already unable to suppress this horniness.
