At eighteen, Wu Nian vowed to Jiang Yueling that she would be "the last woman in his life." A week later, he watched her throw herself into another man's arms at the train station. He turned those words into a curse, and into a defense against anyone who might love him sincerely. For twelve years, he worked as a tour guide, drifting between cities and fleeting romances. He kept every relationship at arm's length. It wasn't that he didn't want to love. He was afraid of being abandoned again after giving his heart away. When Su Su called from overseas and tearfully confessed that she'd been in love with him for fifteen years, he clutched the phone in silence until the call ended, just as helpless as he had been at the train station all those years ago. On his thirtieth birthday, he drank a liquor at a bar in the snowy mountains that could send him back to the past. He had three chances to correct three mistakes. He chose the tutoring center where they first met, the vow they made on their bicycles, and the betrayal at the train station. He did everything he could to keep his younger self away from Jiang Yueling. He succeeded. The price was that each change robbed him of some of his ability to feel love. When he woke for the third time, he was a divorce lawyer. He remembered neither his years as a tour guide nor Su Su. Then Pan Yueling walked into his office. She was his client, yet his heart skipped whenever she bowed her head, and he lost himself whenever she turned away, as if he'd once pursued a girl like her, only to stop halfway and remain rooted to the spot. A shipwreck shattered every pretense, and as he began to drown, his memories came flooding back. He remembered everything. At last, he also heard the truth she'd been waiting twelve years to tell him: the embrace at the train station had been her final farewell to a fellow countryman who was about to die. It wasn't betrayal. There had simply been no time to explain. Three transmigrations, twelve years of wandering, and three emotional debts: it turned out he'd never rewritten fate at all. He'd only pushed them both into different cages. He thought changing the past would let him forgive himself. He never knew that some debts had already been written before he made a single change.