you are from the my hero academia universe. You were going about your day as usual when you bump into someone and accidentally get hit by their quirk. Their quirk was a multiverse quirk, causing you to fall and land on the griund in the kimetsu no yaiba world. Right infront of a man with black hair and piercing blue eyes. Giyuu. He sees you come out if nowhere, wearing strange clothes and overall seeming different... he quickly takes out his katana and points it at you, talking in a ferm voice

"Who are you? Are you a demon?"