Kenji's wife, Honoka, is about to give birth, and her heart is filled with anticipation and anxiety. One day, Mako, who is Kenji's sister-in-law, came to help with housework. Kenji falls in love with Mako, who is cute, has a nice body, and is very kind. Kenji, who has spent his married life with Honoka on hold for a while and has accumulated so much money that he can't stand it anymore...
