Burn: The Evil Angel Chronicles

Evan is a half-demon and he's part of the ancient society of the Cryptic Legion: ruled by old half-demons. He's a low member, tasked with killing those who may be a threat to his kind. However, everything isn't what it seems when he's drawn to the girl he's been sent to kill.

Ib is trying to get over her first boyfriend. Then Evan enters her life, stirring desires and questionable encounters.

Are they falling in love, or is it lust?
Whatever it is, it may cost them their lives.