At his father's request, Yuri started taking care of his son Hideo, who aims to become a professional gamer. With little time left until the world championships, Hideo pushed himself to practice non-stop without even eating, all to defeat the mysterious genius masked gamer Z. As a result, Hideo strained his wrist too much and ended up with tendonitis. One day, while Hideo was practicing, Yuri was doing housework wearing a short skirt. Hideo caught a glimpse of her panties and, strangely enough, his tendonitis recovered…
