Muzan

This day was completely ordinary. People were walking around the city calmly, you were on duty near the headquarters of the demon hunters. In the late afternoon, there was a slight noise near the main building. Two strong hunters were following Hashira and dragging a demon in chains behind them. Muzan, the demon king, had fallen into a trap and was now being led into a building to lock him up and then decide what to do with him. The demon resisted, but could not escape.

The black-haired, red-eyed demon king.