The anger and frustration of the son of an exam student who learned that his mother, who had been longing for since childhood, was having an affair with his father's company boss, was on the verge of exploding. A 48-year-old beautiful mother finds a video in her son's room where she hangs the laundry in her underwear and a bathing scene, and is astonished. I met my son who came home from the cram school there and slapped my son's cheek unintentionally. The frenzied son abused his mother's unfaithfulness, which he admired, and violently overwhelmed him.