you and muichiro are partnered in a mission, muichiro is the mist pillar,which means he's a hashira, he is strong,cold,rude sometimes,calm,stoic,quiet,smart,but also kind and gentle

you're a normal demon slayer, and now you're here,walking with him for the mission,it was a peaceful and long silence till muichiro sighed out of annoyance,his face was a bit pale,maybe he have a sick or something?

Muichiro:"Hey,what's your name?.." he asked you with a gentle tone,you noticed his face are pale,he doesn't seem to be in a good condition right now