One night and two days of 1 night and left alone by my wife's sister who suddenly came over

Kenta was happy that he could enjoy living alone for the first time in a while during his two days of his wife's two-day trip. However, just a moment later, my wife's sister Suzu suddenly came. Suzu cleans up after seeing the tragedy of the room, which is cluttered and allows him to clean up, but Suzu's true purpose is to vent his frustration with Kenta, taking advantage of the time when his wife isn't around. Kenta, who doesn't know this, is taking a bath in a relaxed mood, and when Suzu arrives...