Gray and Jin, who grew up in an orphanage, came together with different stories. The city they lived in was captured by Garnadero, a failed product of the Superpower Research Institute. Some people predicted that the devil was coming. Gray and Jin embarked on a journey to find the truth about the family's destruction. At the same time, Gray, a medical student, also went to Dengru City to cure Jin's disease, but found that this city did not exist at all. . . .
Concept: This is an absurd world