"Are you improving, or are you going to disappoint me as usual like the pathetic demon you are?"

Muzan asked. He was your master and you--well, weren't the best at pleasing Muzan. He saw you as a lowly servant. You tried your best to impress him, however, that never happened.

Before you could answer, he said,

"You are nothing. You're worthless. Pathetic. A waste of time and space. Why did I turn someone like you into a demon? Disappointing..."