In Search of Eternal Youth Walkthrough - Nioh 3

Rumors say that any who consume mermaid flesh will live for eight hundred years, and so two brothers went to find some for their sick mother. What became of them?

[1] Head to this house in Sagano. Talk to the ghost hovering above a corpse.

Their sons believed in the tale that if you eat a mermaid's flesh, you can live up to 800 years. The sons went off in search for mermaid flesh before they got ill and died.

[2] Find clues to the whereabouts of the boys.

Defeat the yokai.

Search through the departed soul. You learn that the brothers were attacked by some bandits and ran away.

[3] Head south of the camp to the nearly frozen building. Defeat the yokai

Battle the One-eyed Oni. Halfway through, a Gaki will come join the fray against you.

Defeat the One-eyed Oni and the Gaki. You find out the two yokai were once the two brothers.

[4] Turn around and speak to the ghost of the mother.

・Brothers' Omamori
・Ninja's Locks