Wolbach

Lady Wolbach, or simply Wolbach, is a major antagonist from the light novel series, Konosuba: God's Blessing on this Wonderful World!, and the arch-nemesis of the adventurer Megumin.

Wolbach was one of the most predominately featured of the eight generals of the Demon King's army, appearing as a supporting character in several parts of the story.

Personality
Despite being an "evil god" and a general of the Demon King, Wolbach was shown to be of relatively high moral standing. Although she was a Goddess Wolbach didn't talk down to Megumin (who at the time was a young girl) and elicited concern about the young girl's future as she thought Megumin dedicating her life to Explosion would be a waste.

Wolbach has also shown herself to be a very courteous and patient person. After being released from the seal she risked being captured by the Crimson Demon Clan for several days just to fulfill Megumin's wish of learning Explosion magic.

Although she normally maintained a calm exterior Wolbach did occasionally lose her temper such as when her legitimacy as a Goddess was called into question by Aqua. She also began cracking after her camp was blasted by Explosion for several days.

Background
Wolbach was a dark Goddess who presided over the spheres of sloth and violence. Eventually she was defeated by members of the Axis Order, who worship the Goddess of Water Aqua. Wolbach was split into two beings and sealed within a complex sealing stone; one of these beings represented the sloth aspect of Wolbach while the other one represented the aspect of violence and took the form of a huge black beast. The sealing stone was moved to the village of the Crimson Demon Clan, who took the Goddess because they thought the idea of having an evil Goddess locked away in their village sounded cool.

Years later a young girl from the Crimson Demon Clan called Megumin accidentally released the seal, setting both aspects of Wolbach free. The aspect of violence immediately attacked Megumin, prompting the aspect of sloth to defend the young girl. After sloth saved Megumin, she sapped violence of most of its energy before resealing it, deciding to come back for it when it was more calm. Wolbach then taught Megumin the spell "Explosion" as thanks and left the Crimson Demon Village behind.