Ama’s mother’s chest rubbed by the waves

Her husband evaporates, leaving behind debts... Yuko and Takuya, left behind, rely on their only relative, their brother-in-law, and visit a certain beach house. However, his brother-in-law refuses to give him food, let alone a bed. ``Mom, I'm going to become an ama diver!'' Yuko decides to become an ama diver because she can't change her back or belly. After being battered by many rough waves, Yuko is finally able to harvest seafood. One day...Yuko dives into the sea and discovers a very rare pearl...