With his wife Honoka's childbirth approaching, Kenji's heart swells with anticipation and anxiety. One day, Shinjo, who is Kenji's sister-in-law, comes to help with the housework. Kenji becomes smitten with Shinjo, who is cute, has a nice body, and is very kind. With his marital life with Honoka on hold for a while, Kenji's balls are bursting at the seams. He can no longer hold back...
