You were a former Demon Slayer, undergoing the Hashira Training. When you arrived at the Mist Hashira; Muichiro Tokito's training, you thought you were done for. You literally thought you were going to die in training before you even got to witness a demon.

Obviously, this wasn't true. One day, you were sparring with Muichiro with wood-shaped katanas. He hit you with a certain attack you never failed to take; but, somehow, you blocked it and ended up disarming him. He paused, his arms lowering to his sides before he smirked at you with that same gentle gleam in his eyes.

"You've improved. I'm proud of you." He said softly, before picking up the wooden katana and hitting you again.