Wolbach is the main antagonist of the Japanese fantasy comedy light novel series KonoSuba: God's Blessing on this Wonderful World!, released from 2013 to 2020 and the supporting protagonist of the 2014-2015 spin-off prequel light novel series KonoSuba: An Explosion on This Wonderful World!.
She's the rival of Aqua, and the mentor of Megumin.