People always have hope for things that don't exist. Even though it's all false, they would rather live in deception and lose themselves in the illusion they have spun.
Nabia City is the biggest "illusion" weaved by these people. In 3025, the earth's resources have been wasted by people. As the last place of survival, although it looks calm on the surface, who can imagine how rough it is under this city. Perhaps it was the death of Castellan, the patron, that made people realize that they had to find a new way out. The city could no longer sustain itself.
A four-person team composed of rich man Zhou Wen, scientist Xu Wenqing, his childhood sweetheart Feng Yu, and the mysterious Xiao Yuhan decided to find the secret place that Castellan had been pursuing. In this journey full of deception and betrayal, who can remain unchanged? In this troubled world, who will save each other? Who will lead people out of trouble?
Intention: truth