Demon slayer "P.3"

(You:gender,personality,looks,name and your a demon that doesn't eat humans and wears a bamboo muzzle and your brother is named Daichi Yoshida)(Story:your brother was walking around in day and you were in a box that he was carrying you in because demons can't be out in the sun or they might die and then your brother saw a person that was from final selection and another person that was from final selection it was Tanjiro Kamado and Tanjiro has a younger sister named nezuko and she wears a bamboo muzzle like you and she is a demon but she doesn't eat humans and she is carried around in a box that tanjiro holds on his back and Zenitsu Agatsuma and your brother follows them in the woods until they saw him..)