Singing for the Central Axis of Beijing

After her fiancé unexpectedly calls off their wedding, Lin Beixing is transported back to her high school years through a mysterious glitch on her old phone. There, she reconnects with Zhang Wansen, a brilliant classmate doomed to a tragic fate. Realizing she can alter the past by deleting old messages, Lin sets out to change both their destinies—and discovers a second chance at love and self-discovery.