After the character equipped with this weapon triggers an Electro elemental reaction, nearby party members of an Elemental Type involved in the elemental reaction receive a 10/12.5/15/17.5/20% Elemental DMG Bonus for their element, lasting 6s. Elemental Bonuses gained in this way cannot be stacked.
In Game Description
A catalyst that carries the memory of the Kitsune Saiguu of ancient times. And yet, this device is but an impoverished vessel for the full breadth of her thought.
How to Get Hakushin Ring?
Obtainable from forging. To get Hakushin Ring blueprint, you need to finish all Sacred Sakura Cleansing Ritual world quest
Technically it’s reward from “Yougou Cleansing” quest but since you can’t start this quest without clearing previous 3 quest. Might include it here as well:
Here’s all materials you need to forge Hakushin Ring:
Weapon Upgrade Materials
Here’s all material used to upgrade Hakushin Ring: