Definition: In this task, five ordered key facts are given. All the given facts are expressed in natural language. Your job is to generate a story 100 to 1000 words long, that includes all the facts given as input in their order of appearance while expanding upon them to produce a broader, yet coherent, narrative.
Input: Fact1: mermaid flesh grant immortality if eaten, Fact2: consumption lead to death or transformation into damned creature known as Lost Soul, Fact3: Mermaid Saga tells tale of Yuta, Fact4: Yuta wanders across Japan searching for cure, Fact5: others lives have been ruined by mermaid flesh

According to an ancient Japanese legend, mermaid flesh may grant immortality if eaten. However, there is a much greater chance that consumption will lead to death or transformation into a damned creature known as a Lost Soul or Deformed Ones in the English dub. Mermaid Saga tells the tale of Yuta, an immortal who has been alive for five hundred years. Throughout the series, he wanders across Japan searching for a cure and meets others whose lives have also been ruined by mermaid flesh.