By chance, Zuo Yu traveled back to 2009 from 2300. Met Mo Qing from the Oil Painting Department. When he saw him, he knew her ending, a film and television star who died at the age of 26. He didn't know that his appearance had changed the trajectory of her life. At the same time, it also changed the life trajectory of her best friend Xu Zixin.
Zuo Yu, who once only had himself and the machine in the world, fell in love with Mo Qing, an ancient man, but the time traveled was only five hours a month.
People who originally lived in two time and space, because of these five hours. The trajectory begins to change...