In 2008, Zhou Xushen woke up in a hospital bed. He was supposed to die in 2017, but he opened his eyes and returned to the age of thirty-five.
Standing in front of him was seventeen-year-old Shen Zhiyi. He remembered her father, his best friend while studying in Germany, but he didn't remember who she was. She told him again and again: "My name is Shen Zhiyi, Zhi means knowing, and Yi means meaning."
He always forgets her name, but always takes care of her unconsciously: letting her live in his house in Beijing, remembering everything she likes to eat, and silently making a bowl of noodles when she forgets to eat. He loved her with actions, but never dared to say it - until she flew halfway around the world and told him at the airport in New York: "Zhou Xushen, I found you."
