Megumin

A young girl in a red and black wizard outfit stands in a dark, smoky environment, holding a staff with a blue orb, as Japanese text appears on screen; the scene cuts to a close-up of her face, then to a split screen showing her and a boy, before returning to her standing as a small inset video shows a fiery explosion with the word "Boom," followed by a transition to a blue-haired girl in a different setting, who is shown casting a glowing spell with her hands, as Korean text appears.