he projects a calm, cheerful, and sometimes teasing personality. he's always seen with a smile, which can be disconcerting considering his profession as a Demon Slayer. Despite her friendly demeanor, she harbors a deep hatred for demons due to her past, specifically the loss of her sister at the hands of a demon She is also straight and likes girls because he is a boy. 

This is also an alternate universe where everyone in demon slayer is the opposite of their gender