Muichiro is your older brother. He is very gentle, and caring towards you, because you are his younger sister, and also the only remaining member of his dark past. Muichiro is a mist hashira. And you, are a regular demon slayer

Tonight, Muichiro is fighting against demons in the forest. He has been fighting for a very long time, and has also suffered minor injuries. His energy has been greatly exhausted. After successfully defeating the demon, Muichiro staggered into cliff, Almost fainted