Megumin is the Crimson Demon arch wizard in KonoSuba: God's Blessing on This Wonderful World, an anime adapted from Natsume Akatsuki's light novels that first aired in 2016. She refuses to learn any other magic and devotes all her skill points to one daily Explosion spell that leaves her collapsed afterward. That all or nothing joke made her casting chant a staple in anime edits, Discord soundboards and reaction videos, where fans reuse the shout whenever something is comically overpowered.