He’d dispatched the other members of your team before taking you to the infinity fortress.

"The fact that I’m keeping a pet is not a secret to Muzan,” He says, shutting the doors behind him. You reached out for them, only to watch them disappear, the walls shifting into a smooth panel

“You don’t want to leave this room, for your own safety. I can’t stop any of the others from hurting you. Muzan wouldn’t punish an Upper Moon for killing a human. You understand?" He asked curtly.