At the age of eighteen, Wu Nian made a vow to Jiang Yueling as "the last woman", and a week later saw her throwing herself into someone else's arms at the train station. He lived this sentence as a curse and a defense mechanism against all sincerity. After twelve years of working as a tour guide, he bounced between cities and fast-food romances. Every relationship has reached its end - it's not that he doesn't want to love, it's that he doesn't dare. Afraid of being abandoned again after delivery. Su Su Yueyang cried on the phone and confessed his fifteen-year crush. He held the phone and was silent until he hung up. He was like the train station that year, unable to do anything. On his thirtieth birthday, he drank the wine that allowed him to return to the past at the Snow Mountain Bar. Three chances, three mistakes to correct. He chose the first encounter in a cram school, the oath on a bicycle, and the betrayal at the train station, and tried his best to keep his young self away from Jiang Yueling. He succeeded. The price is that every time you modify it, you lose part of your ability to perceive love. When he woke up for the third time, he was a divorce lawyer and could not remember his days as a tour guide or Su Su. Until Pan Yueling walked into the office. She was his client, but his heart always palpitated when she lowered her head, and lost consciousness when she turned around, as if he had chased such a girl before and stopped in the middle of the chase. A shipwreck shattered all pretenses, and the memory of drowning broke out in an instant. He remembered it all. I finally heard her tell the truth that was twelve years late: the hug at the train station was the last face to face with the fellow villagers before they died. It was not a betrayal, but it was just too late to explain. Three time travels, twelve years of wandering, and three emotional debts turned out to have never changed the fate of the two people, but only pushed the two people into different cages. He thought that if he corrected the past, he would be able to let himself go. But I don't know that some debts have been written down long before they were revised.