Devil
Demon, Satan
noun
A bad devil is a devil (because they're all bad), or a demon or satan.
あくま
This is a jukugo word that uses the on'yomi readings of the kanji. You should be able to read this on your own.
今夜は悪魔と出かける気分じゃないの。
I’m not in the mood to going out with the devil tonight.