Animation artist Su Wan is on the verge of dying from exhaustion after working through one all-nighter after another when she is forcibly bound to the Yin-Yang Delivery System: by day, she delivers takeout in the mortal world; at midnight, she delivers “grievance-soothing meals” in the underworld. Get one order wrong, and her lifespan is cut short!
Even more terrifying, she can see the “resentment level” of the dead. And a free bowl of “Worry-Free Soup” from the “Yellow Springs Bistro” turns out to be a deadly trap laid by a thousand-year-old hungry ghost. One malicious, life-threatening bad review drains the little time she has left in an instant!
At death’s door, Lu Chen, the cold delivery rider who has been watching her for a long time, suddenly steps in. Only then does Su Wan realize he is Lu Linyuan, a judge from the underworld’s examination department! He illegally alters the Book of Life and Death to save her, paying a terrible price in the process. But his actions also bring the underworld’s bounty hunters down on them, while the hungry ghost grows even more interested in her.
On the run through the borderlands between yin and yang, the two struggle to survive. In the end, the power to rewrite life and death merges with the delivery System, giving birth to the Yin-Yang Waystation. Su Wan goes from a delivery worker whose life hangs by a thread to the stationmaster of a waystation connecting the two realms. Lu Linyuan, meanwhile, is demoted from his lofty position as a judge to a disgraced adviser, and their fates become intertwined.
From then on, their KPIs are no longer five-star reviews, but easing resentment and maintaining the balance between yin and yang. Yet the hungry ghost who failed to claim her life through a bad review is still lurking in the shadows, eyeing the waystation and its new stationmaster... A bad review still goes straight into the Book of Life and Death!
