Conflicts between the worlds of "land" and "sea" divided the town of Choshi during the early Showa era. Born to Kyubei Bando, the owner of a long-established soy sauce brewery, and his mistress Rui, Kaworu was taken in by her father and raised as a prim and proper lady. She fell in love with Sokichi, the oldest son of an established fisherman, despite the fact that their families were in conflict. The story of pure love between two people that grew beyond the boundaries of the old customs that they were brought up with is what this is. It is a drama that depicts their turbulent journey of love and the bonds of the people from an old and established family working diligently to protect their soy sauce business through the ups and downs.