The Fetters of Dromi is an accessory that debuts in Fire Emblem: Three Houses.
As with all Heroes' Relics, if the user does not have a Crest, the ring deals 10 damage to the user after combat.
|Event||A Cursed Relic - End of paralogue|
Dromi was the name given to the second set of chains meant to bind Fenrir, or the Fenris Wolf in Norse Mythology. During the binding, Tyr used his hand to keep the wolf from biting any of the workers, and ultimately had it bitten off, which could be why the Relic is a glove as opposed to a standard ring.