Amara and Ava are fraternal twins born under the Blue Crescent moon—a phenomenon that occurs once every fifty years when a new male ruler is born to lead the world of vampires, werewolves, witches, and humans. Ambrosia gives birth in secret for fear of being killed by Gorgon, the vampire ruler who plots to kill all unborn children before the blue moon ascends. However, she was unaware that she has given birth to two daughters. Ava is invisible while Amara is a wolf less crossbreed. In order to save her daughter from the blood-thirsty creatures, Ambrosia sends Amara to the farthest future. In the present day, the teenage twins finally meet as Macy Peterson and Madison Greene without knowing their bond and all hell breaks loose. Would their union bring peace to both worlds or a much eviler bloodshed?

Micca steps down to earth with a mission to find heaven’s lost precious soul—Human. He accidentally possesses Amber’s body as his vessel and couldn’t get out. As Micca dwells inside Amber’s body, he opposes the latter’s dark emotions and lustful desires, creating an unpredictable switch of personality. In the long run, he suprisingly develops feelings for her. Amber, on the other hand, is unaware that she is being possessed by an angel. With the guidance of Gideon and an hourglass that limits his time on earth, Micca continues his search for Human without knowing that Amber and Human are one. Would Micca ever fiind out that Amber is the lost soul that the heaven is looking for before it's too late? Would he be willing to fight for his love even it means treachery to the heavenly realm?