Flesh of Eternal Youth. Legend tells that anyone who consumes the raw flesh of a ningyo will live forever. The tale goes that a man caught a ningyo and served it as sashimi to his fellow fisherman without realizing what it was. One man noticed that it was a ningyo and, not wishing to offend his host, told his friends to secretly dispose of their meal. One man, drunk on sake, forgot that he put his ningyo sashimi in his pocket and gave it to his adult daughter when he returned home. The daughter ate it and lived with eternal youth, marrying many lovers and watching them die while she remained young. After 800 years, she returned to her hometown and took her own life.