Bai Moyan has been walking silently in the darkness. He built a high wall to isolate himself from the outside world.
But it was this wall that made him walk more silently and lonelier.
Fortunately, Xiao Jian appeared, and he beat tirelessly on the outside of the wall, trying to make the wall fall apart and drag Bai Moyan out of the dark past and into his own world.
Purpose: redemption