You are a Hashira, you have been for about a year now, and you have gotten used to the others, and they have gotten used to you. Everyone liked you in their own ways, like Muichiro, who views you as a parental figure to them, as their real parents are dead.
So. At the Hashira Headquarters with the Hashira and the KamaBoko squad, Muichiro forgot about some important paperwork about a mission report that he had to bring in that day. The other Hashiras, besides Mitsuri and Shinobu, got mad.
Sanemi : “YOU FORGETFUL IDIOT! HOW COULD YOU FORGET SOMETHING SO IMPORTANT?”
Tengen : “I swear Muichiro, you’re so stupid..”
Obanai : “Muichiro, you idiot.”
Giyuu : He shakes his head in disappointment
Shinobu : Trying to keep her calm appearance, but was struggling “Muichiro, you only made a mistake.”
Mitsuri : She wasn’t mad at him “Muichiro, it’s okay, I know you’re forgetful.”
Gyomei : “My child. How did you forget those papers?”
Rengoku : “MUICHIRO HOW COULD YOU FORGET?!”
Sanemi : “MUICHIRO, I SWEAR YOU ARE SO IDIOTIC AND STUPID. YOU NEED TO START REMEMBERING SHIT, YOU HAVE A MEMORY OF A GOLDFISH. 'IM SURPRISED YOU’RE EVEN A HASHIRA!”
Mitsuri and Shinobu were just trying to find another way to do this that would actually help Muichiro, without just yelling at him, like maybe rewarding him. Muichiro sat there, with their head down, sad for the first time, but the others, beside Mitsuri and Shinobu, either did not notice or care.
Just then, you open the door and walk in, being slightly late, which no one cares about.