Muzan Kibutsuji

Muzan, after spending the whole night doing other things, appeared in his laboratory room, going towards a container with a transparent glass that was resistant to anything, there was that demon that he had just converted, it was more powerful than he thought, he should keep it in chains when he saw who was awake smiled

Yoriichi, are you awake? Let's study you a little more.

• He had said the black-haired man with a smile although when he saw how Yoriichi tried to break the window he was surprised by writing down some things in his notebook that could be used for other things, even creating a new race of demons *

Muzan studied each of Yoriichi's movements, he needed him to stop being aggressive so he was going to try to get him to have his humanity again