The protagonist Jiang Tingyun is the ace taskmaster of the Space-Time Management Bureau, codenamed "Return to Zero". His mission has never been to conquer or redeem, but to enter those small worlds that are on the verge of collapse due to excessive obsession, and to find and "erase" the "source of error" that leads to instability in the world - usually a paranoid core figure. However, in the latest high-risk mission, he discovered that the "source of error" in every world was actually the same person - Shen Yanhui, who should have been forgotten by him, but made him tremble deep in his soul. The task has changed from a simple "elimination" to an extreme "pull": to carry out cold orders, or to protect a fiery soul? And who is Shen Yanhui's paranoid pursuit across countless worlds?
