I'm stuck on the day before Valentine's Day, waking up for the hundredth time. As a courier, I am bound by a weird system: an anonymous courier must be delivered perfectly, otherwise time will loop forever. After ninety-nine failures - car accidents, misunderstandings, mistakes - I finally delivered the package to the recipient. She is my ex-girlfriend who left without saying goodbye seven years ago, Shen Qing, a top brain doctor. I tore open the package, and inside was the engagement ring I failed to give back then, and a note from "now". Time began to flow, and she finally told me that behind this endless cycle, there was the truth about my "accident" and all the secrets she had kept silent over the years.
