Wife with Wife

Sakuraba Kotaro succeeded to a little grocery store from his dead father. With help of Nagisha, his mother-in-law, and Nagisa, his sister, he managed to keep the store. One day, a big supermarket, Kaneyu, urged him to deliver the shop. The man in charge of Kaneyu was his brother who had run away from home giving up his father's business.

(Source: AnimeNfo)