'Devil of Envy' or 'Wrath'

Lamento: Mizuki is the Devil of Jealousy; she's very spoiled and strongly wants to kill Konoe. She kills Tina, who tries to save him. Yun's the one who gets to kill Mizuki though he says he didn't mean it.

Fire Emblem (2nd generation): Mangatsu's role as Wrath came from FMA obviously, but it was different compared to the psycho kid from FMA. Mangatsu dies from her wounds a month after Darc stabbed her with his Killer Lance. The person who revived her is yet unknown. As Wrath, she seeks for Luke to kill him, because before she died, he abused her so much and he did something to her that she strongly regrets before her death.