Pushed by her husband Makoto, Aoi visits her father-in-law's house alone. And there appears Ryozo, her father-in-law, home from three months of tuna fishing and still in a state of enforced celibacy. Mistaken for the housekeeper, Aoi can't resist his starving, ferocious appetite and is taken by force. She drowns in a feral toughness her husband doesn't have, and in the attentiveness of a father-in-law who serves her fish he caught that morning. Having sunk into a guilty sea while Makoto was away, three months later she walks back to her father-in-law and the appetite waiting there without a moment's hesitation.