Shi Yi disappeared, but Chen Ling was regarded as a suspect because the two had a physical conflict that day, but there was no evidence to directly prove that it was Chen Ling who did it.
As soon as she fell into the water, Chen Ling unexpectedly went to a parallel world, where everything was exactly the same as in her previous life.
Chen Ling found that the trajectories of Shi Yi in her own world and Shi Yi here seemed to be consistent.
So... Can we find out the reason for Shi Yi's death... Then we can return to our own world?
Intention: There is a causal relationship