Su Jin travels to the world of "Honkai: Star Rail", binds the "Echo of Fate" system, and enters the "if" world of tragic peers by drawing cards, and performs tragic redemption in a seemingly absurd way. He traveled through the Black Tower Space Station, Beloberg, Immortal Boat Luofu, Ompharos and other worlds, repairing regrets and alleviating star core erosion, but at the same time he suffered the pain and curse of his peers. As the reverberations of the repair increased, he gradually discovered the deep connection behind the system with the Tree of Imaginary Numbers, the Star Core Crisis, and even his final destiny. He himself was also on the verge of disintegration due to the accumulated "trauma marks".
