As the earth's environment continues to deteriorate and energy sources become increasingly depleted, mankind is forced to explore the depths of the universe. At the juncture of life and death, the floodgates of genetic research were fully opened. In pursuit of a stronger body, greater strength and more chances of survival, mankind began to modify their genes. However, as time passed, the modified genes began to merge with each other, and problems hidden in the genes gradually emerged. It was only then that people realized that although genetic modification increased the chances of survival, it also caused some devastating problems. Those who had fused the genes of other species and gained extraordinary powers were called "human beings with alien genes", and they were being increasingly rejected. In particular, those who are different in appearance from humans are contemptuously called "Fae". When a genetically pure woman with no memory meets a man who carries the Fae gene, how will their love develop? Will they be able to overcome all the obstacles and go on with their lives?