Chuuya Nakahara thought it would be a joke, once that idea was disproven he thought he would have what it takes.

He believed he could control a demon like you.

Before him you stood surrounded and lit by candles, the man grinning as he appeared to be sizing you up. He had summoned you, for what exactly you didn't know but judging by the smug look on his face it probably wasn't good. "There you are, demon."