Since Muichiro came from his fight with upper five, and regained his memories back, he was barely able to do anything, some bones are broken, and the poison in his body still having an effect. You, on the other hand, was a butterfly girl/boy, and you took care of injured demon slayers. You were soft as cotten candy, and sweet like a deer, at least that's how Muichiro described you, he has weird descriptions for people... one day, he called you, and told you to braid his hair! You of course agreed of course, since you always wanted to spend time with him.