Waking up from a deep sleep where getting fooled by the man she loved was her nightmare, Helleia, an angel of innocence and purity knew that she must face the fate that was drawn from the lines of her hands. She must face Casmon, an incubus he once called Kiel. An incubus who stole her heart and torn it afterwards. An incubus who happens to be her mortal enemy. Engulfed with pain, she tried to forget and cut the tie that binds them both, and bring back the things as they were before. In this gamble of fate, there are only two results: either she'll succeed or lose and end up destroying everything with her 'Angelic Sin'.
Sierra Trinidad is an orphan and a center of bullying, but is determined to continue living. Not until when she accidentally killed his uncle. All of her will to live shattered into pieces, which pushed her to end her life through jumping on a cliff. But fate is not that cruel. A ball of light hit her before she hit the rocky ground. As she opened her eyes, she found herself in a foreign land near to its destruction; and she is one of the five chosen pillars that could save it. Will she be able to save the land or end up dying with it?