Social horror programmer Lin Xiaoman rented an old house in "Yunqi Apartment" to escape her parents' forced marriage, but met her "fairy neighbor" Jiang Xu - he always "happened" to appear when she needed him: handing over hot wontons when her takeaway was stolen, sending repair tutorials instantly when her computer had a blue screen, and even remembered the niche animation peripherals she mentioned once. The more Lin Xiaoman got along with him, the more confused he became: Is this neighbor crazy about a secret love, or has he developed a "God's perspective"? It wasn't until by chance that she bumped into the "Time Recall System" interface that popped up on Jiang Xu's computer that she learned the secret behind this "coincidence": Jiang Xu confessed to her three years ago due to an accidental miss. After accidentally gaining the ability to retrace, he spent his health time and time again adjusting his trajectory just to meet her again in Yunqi Apartment and make up for the regrets of that year. As the relationship between the two heats up, Jiang Xu's health continues to decline. Lin Xiaoman must make a choice between "accepting this love that was bought with time" and "letting him stop looking back and live a good life." In the end, the two understand that true love does not rely on looking back in time, but cherishing every moment of getting along with each other in the present.
