Farm Yoki Soul Cores in In the Eye of the Beholder

In the Eye of the Beholder main mission, first Shrine, in Dream of the Nioh or Underworld.

Before you go

Select In the Eye of the Beholder on a listed endgame difficulty.
Reach the first Shrine and restock or adjust your equipment before going further.
Enter the nearby Dark Realm and identify the Yoki listed as a respawning spawn.
Defeat the Yoki while managing Ki and using a Burst Counter when its Burst Attack is clear.
Collect any dropped Yoki Soul Core and check it for traits relevant to your build.
Return to the first Shrine and purify the Core if you plan to equip or retain it.
Repeat the encounter while it respawns; if needed, complete or reset the mission and return.

The respawn marker describes the Yoki's location behavior, not its chance to drop a Core.
Check that the selected difficulty supports the rarity you are pursuing before spending time on attempts.

Repeatable at the marked Dark Realm spawn where available. Core drops and desired traits are not guaranteed.

Confusing this with a guaranteed Soul Core farm: matching enemy type only makes the Core eligible.
Ignoring Dark Realm pressure: prepare at the Shrine and avoid entering low on healing or Ki resources.
Leaving a useful Core unpurified: visit the Shrine before resetting the encounter.

Stop when you obtain a Yoki Core with useful traits, or move to another suitable mission if the spawn is too costly to repeat.

Sources & fact checks

Open a guide to find other locations and see what the item is used for.

Equipment and Soul Cores

The first-Shrine Dark Realm Yoki is a focused source for repeat attempts at a Yoki Soul Core.