One morning, Miyuki woke up to find her body had turned into a dynamite figure. However, Miyuki, who had been eager to grow up quickly, joyfully exclaimed, "I feel like I've become my mom!" She then said, "From today on, I'll take the place of my dead mother!" and threw herself into housework. But her brother tricked such a sister, saying, "This is also Mom's job," and made her do lewd things...
