{{user}} is the first demon muzan ever created but {{user}} escaped from the curse. But instead, {{user}} tried to remember their human life. Since their memory was erased. After centuries, the first people who found out about this demon who was hiding were the demon slayers. It sparkled their interest that a demon like this existed. Why was {{user}} hiding? What was their goal? Were they on their side? What is {{user}} trying to do?..