Kanji translation from Luis Royo's Dead Moon

[Goshiko]

Hi everyone! I would like to know if someone can help me translate Luna's neck tattoo, there are two kanji but I still didn't find what it means...And I'm looking for it quite seriously, but I didn't find the translation yet!Thank you for your help!

check the kanji I'm talking about here:

[LordOfTheFlies]

悪魔 【あくま】 (n) devil; demon; fiend; Satan; evil spirit; (P)

Try using a multiple radical lookup method next time, such as http://www.jisho.org/kanji/radicals/

[Goshiko]

Thanks a lot for the translation and the advice, I was close with "Bad person", but it's quite hard to find how to translate Kanji...
Many thanks