My wife had gone back to her hometown to give birth, leaving Toru behind. Eager to indulge in pachinko, something forbidden since he got married, he was looking forward to his first solo life in a long time... But suddenly, his sister-in-law Sena showed up uninvited. She claimed to have come to help Toru, who must be struggling on his own. As she cleaned, Sena teased him by showing off her breasts and lingerie, pushing Toru's sexual desires to the brink of endurance. He fled to the bath, but Sena followed him...
