Eugene Dawson is a young man set on getting stronger, and he trains under Liza Pulsandra, a woman celebrated as the Sword Saint. The two live under the same roof, and his days with her are happy ones. Liza has unmatched physical strength, yet her private life is something of a mess. Her careless, alluring figure and the way she touches him without thinking make it hard to focus on training at all, leaving Eugene to wonder whether he can really grow stronger this way. The result is a romantic fantasy comedy with a heavy dose of ecchi humor.