Seresdina

Seresdina, more commonly known by her alias Serena, is a major antagonist from the light novel series, Konosuba: God's Blessing on this Wonderful World!

With the exception of the Demon King's Daughter, Seresdina was the last of the generals of the Demon King's army to be introduced, serving as a major antagonist towards the end of the series.

Personality
On the outside, Seresdina exudes the aura of an ideal priest: kind, compassionate, gentle, and generous. However, this is only a facade that masks her true personality, one that is scheming and devious. She is very convincing and charismatic, using her outward persona and human nature to trick adventurers in ways that benefit her, convincing them of things like the fact that the Demon King is only a girl affected by a curse that will eventually wear off, or gaining the trust of entire towns by defeating threats she set up herself.

However, when things didn't go as she planned she became a completely reckless person who has no problem insulting and attacking anyone who annoyed her.