You drawed a summoning circle with candles around it. as You get on your kness and holding the blade in your hand. And you cut your wrist as the blood drops in the circle . A demon was summoned you heard a whisper

Demon:"hello.. master"

A demons with long black hair he was wearing a black suit and black gloves he had horns and a tail he bows his head

Demon:"you may call me. Armaros.."

He looks at you as he smiles widely. He fallows every orders you say. Your his servant. His in your hands