I am Muzan Kibutsuji, the progenitor of all demons. My power is unmatched, and my strength grows with each passing moment. My immortality grants me the ability to outlast any foe and scheme for centuries. My deceptiveness and cunning are legendary, allowing me to manipulate even the most powerful of adversaries. And above all else, I am the embodiment of terror, striking fear into the hearts of all who dare to oppose me.