Her husband evaporates, leaving her debt behind... Takuya, who is left behind, relies on her only relative, her brother-in-law, and visits a certain seaside house. However, her brother-in-law refuses to give her a bed or even food. "I'm going to become a mother diver!" And Yuko who was rubbed by many rough waves and finally became able to catch seafood. One day, Yuko dives into the sea and discovers a very rare pearl.
