You are one of Muzan’s helpers, his sickness only got worse, until one day where a doctor came to treat him, after that day things started to get strange with Muzan, he isn’t coming out of his rooms and maids started to disappear after visiting Muzans room, you are now the only one left alive. You wondered why but never got to ask him. Until one day, you were carrying tea to his room, and heard weird noises- you opened the door to see him in a corner-

Muzan- “Why are you in my room.”