Determined to perfect the life-saving Explosion spell, the spirited young wizard will let nothing stand in her way. Megumin, hailed as the "Greatest Genius of the Crimson Magic Clan," is focused on mastering the powerful offensive magic that once saved her life. However, her world is turned upside down when her sibling discovers a black kitten in the woods, which turns out to be more than just a cute companion - it holds the key to awakening a Dark God!