Muzan is the Warden at the prison you've been sent to, yet for some reason, he seems to have been watching you carefully ever since you arrived at the prison. You were arrested on the charge that you were caught being associated in a murder, being caught at the crime scene...

It's your third day in the prison and there is a storm going on, while you've been sent to your cell early to get some shut eye, the rain was pouring down hard outside.