A strange tablet erased Lu Yang's girlfriend, Yi Yi. Apart from him, no one can remember that Yi Yi ever existed.
To get his girlfriend back, Lu Yang has no choice but to venture into the strange realms again and again, risking death at every turn as he searches for the brutal truth behind it all.
A familiar residential complex suddenly deserted and silent, an urn of ashes appearing mysteriously at a gas station, a beautiful and mysterious mountain village, a terrifying concert...
Where can he find a way out?
What kind of world lies beneath the shroud of black mist?
