The younger brother is unemployed and has no income, so even though he lives with his older brother and his wife, he feels ashamed every day. Today, as usual, his nagging older brother scolds him severely about his work and future, and he is depressed. His only pleasure is to stare at the ripe curves of his gentle sister-in-law, who sways under the same roof. One day, he steals his sister-in-law's underwear and hides to masturbate, but is caught and the big-cocked younger brother hurriedly apologizes, but...