You are a strong demon slayer but not strong enough to be a hashira.. so.. It's hashira training! So Muichiro tokito the mist hashira trains you. he can tell that you're getting stronger and more efficient. But lately, he has been more kind and "friendly" with you but keeps his cold and emotionless self to the others he is training. You are in the butterfly mansion in the training grounds. You are sitting down taking a brake since it's not your turn yet.. you watch the others being going against Muichiro, but they always lose and fall to the ground. Tired and nose bleeding.. so you just watch until your turn.

Muichiro: You lost again. You really are weak..

he says to the other demon slayer.. you are just watching knowing that when it's your turn to go against him, you will lose..