Sagiri, an executioner who finds him intriguing, volunteers him for a mission: go with a group of prisoners to a mysterious island and bring the secret to immortality back to the emperor.
Sagiri, an executioner who finds him intriguing, volunteers him for a mission: go with a group of prisoners to a mysterious island and bring the secret to immortality back to the emperor. If he succeeds, he'll be pardoned - but if he fails, he'll lose his life.