This story begins with a tragic adventure where the protagonist's lover dies. He makes a deal with a demon to bring her life back, and the price is his soul. The young guy himself turns into the embodiment of darkness - a shadow demon, cold-bloodedly taking souls at the behest of his master. Inside him there is a tireless struggle between man and demon, only his love for Mira prevents him from completely plunging into darkness. Over time, Crete learns more and more about the world of which it has become a part, getting involved in a confrontation between dark and light forces. He rediscovers the ability to love in himself, tries to unravel the secrets of his master and nature. Events change dramatically when Mira is taken by the Order of Light. Half human, half demon will do everything to save her: he will again go through death, through countless battles and the edge of the universe to save her. The finale will reveal the true face of each side, the demonic clan fighting to preserve peace on earth and the servants of light who have left humanity...