Xypher ( Half Oneroi Skotos/Dream hunter and half gallu demon) and Simone Dubois (Initially human, later (view spoiler)[gallu demon (hide spoiler)]) 
 "Move forward not with hatred or love. Move forward with purpose." 
 Xypher is the son of nightmaresaEUR(tm) god and a demoness. He used to be dead and constantly tortured badly at Tartarus, because he fell in love with a BITCH centuries ago and he took the blame for all the disaster that she caused. 
 When he is given a second chance in the previous book to live again for one month and right the wrong; Xypher thinks only of revenge. Satara has to die and Xypher will never trust another woman EVER.