Eriko ran away to her sister's couple's house because she could not stand her husband's DV and cheating. Her sister's husband Taichi greeted Eriko instead of her sister who couldn't go home today because of her work. Taichi invites her to have a drink after dinner to cheer her up. After a while, she was relieved to see Eriko who started to laugh brightly, probably because she was drunk, but for a short time, the incident was waiting when Taichi was in the bath after the drinking was over. "I'll wash your back." Actually, Eriko, who gets drunk and gets drunk, came in naked. Eriko's hand reaches for Taichi's crotch as she panics.
