[Two male protagonists + quick wear + coercion + yandere + miserable suffering vs slicing attack]
Shen Qinghuan died unexpectedly and was bound to a quick-travel system. Her mission was to act as the tragic Bai Yueguang in various worlds and promote the development of the established plot. I thought it was just going through the motions, but unexpectedly, the male protagonist, supporting actor, and villain deviated from the original plot.
The first world, Bai Yueguang, down and out