Shinya, whose casual remark led to his wife leaving him, desperately apologizes, but her mood remains unchanged. At a loss, he finds solace when his sister-in-law, Kareng, steps in to mediate their relationship. Kareng, who seems overly concerned, maintains an oddly close distance. Just being gazed upon by her beauty makes his heart race uncontrollably. This can't continue. He decides to take a shower to clear his mind, but for some reason, Kareng also enters the bathroom...
