Megumin

Megumin is one of the main characters in KonoSuba: God's Blessing on This Wonderful World!.

She is a young arch-wizard from the Crimson Demon Clan, easily recognizable by her distinctive crimson eyes, black cloak, wide-brimmed hat, and long dark brown hair. She's extremely proud of her chuunibyou (delusional adolescent fantasy) personality, dramatic speech patterns, and self-proclaimed title as the "greatest arch-wizard."

Megumin is completely obsessed with explosion magic — she knows only one spell, Explosion, which is an extremely powerful (but single-use per day) nuke-like blast that leaves her completely drained and immobile afterward. Despite this major drawback, she stubbornly refuses to learn any other magic and insists explosion is the ultimate form of offensive spellcasting.

She's generally loud, theatrical, competitive (especially with other Crimson Demons), and comically serious about her explosion fetish, which frequently causes problems for Kazuma's party.