Devil Mercy is a an evil version of Mercy created by Chernabog. Devil Mercy is Mercy's archenemy for a long time.
Main Allies: Chernabog
Main Enemies: Mercy
Legends of the Multi-Universe: Weirdmageddon[]
Chernabog sent Devil Mercy to act like Kirei Kotomine's loyal member.
Legends of the Multi-Universe: Darkmageddon[]
TBA