Talented Zhou Shui and loyal Daji fall in love, dreaming of a better future in their cramped rental and finding joy amid hardships. 18 years later, their story is discovered by two 2000s-born youths, who become observers and commentators of this romance. The intersection and intertwining of two generations spark reflections and retrospection on love.
In order to ask Daji to be the Female Lead of his graduation short film, Zhou Shui took Daji to an Internet cafe to watch the student work he had filmed.
Daji went to Beijing and lived in poverty. Zhou Shui learned about Daji's living conditions and secretly rushed to Beijing, determined to help Daji through the difficulties.
On New Year's Eve, Zhou Shui and Daji finally fell in love and decided to stay in Beijing together.
Zhou Shui edited the video he shot after meeting Daji into a documentary, and Daji was deeply moved after watching it.
Daji becomes an intern in the programme crew as she wished, and she works very hard. However, the team loses an expensive necklace, and Daji runs into trouble.
Daji had severe abdominal pain and Zhou Shui took her to the hospital. The doctor told Zhou Shui that Daji was suspected of having gallbladder cancer.
Zhou Shui took Daji to visit another doctor and found out that the previous diagnosis was a mistake. After experiencing the desperate situation of almost losing Daji, Zhou Shui's thoughts changed.
Zhou Shui confessed the truth about his failed investment. Based on the principle that "loyalty is the most important thing in a relationship", Daji decided to find a job for Zhou Shui.
In order to arrange a job vacancy for Zhou Shui, Yang Yiming asked Daji to send him money used to build relationships. Daji came to Yang Yiming's home alone late at night, but Yang Yiming tried to assault her.
Daji resigned, and she had no reason stay in Beijing. Zhou Shui didn't want to lose Daji, so he asked Daji to meet in Sanlitun, intending to make a final effort to save their love.
After a period of thinking, Zhou Shui just wanted to live a peaceful life with Daji, but Daji felt exhausted and hoped to end the relationship.
Members of the share house left Beijing one after another, leaving Zhou Shui alone, but he didn't know where to go.
Daji couldn't help but questioned Zhou Shui's purpose. Zhou Shui replied that he wanted to take Daji back to Beijing to live a new life and continue to pursue their dreams.
Zhou Shui and Daji entered a production company and started to prepare shooting of a promotional video. They brought along editor Xiao Mao and photographer Xue Cheng to form a team and work together.
The company was going to hold a Creative Ideas competition, and the winner would have the opportunity to become a full-time employee and make movies. Zhou Shui and Daji's team decided to give it a try.
Zhaoyang invited Zhou Shui and Daji to start a business together and promised to give them a chance to make movies. Zhou Shui successfully shot his first commercial at Zhaoyang's Company.
On Valentine's Day, Zhou Shui prepared a computer as a present. He carefully edited videos recording their precious memories and stored in the computer.
Daji's mother came to Beijing to visit her daughter. After seeing Dal's current living conditions, she felt that Daji was suffering with Zhou Shui.
Daji's mother was sick, but she asked Daji not to tell Zhou Shui because she worried that Zhou Shui's family would Look down upon Daji.
Zhou Shui planned to start a business, determined to make money and bring Daji back to Beijing city area to live a better life.
In 2016, Zhou Shui and Daji's company was doing very well, but their relationship gradually changed from a couple to business partners.
Daji didn't want a marriage without passion. She convinced Zhou Shui to pursue their dream to make a movie.
Producer Ms. Chao arbitrarily amended the script, and Zhou Shui was furious. Daji suggested giving up the opportunity to make movie and return to Beijing to start a new life.
In 2017, Zhou Shui and Daji broke up. Daji returned to Beijing alone and accidentally lost the computer containing their memories at the airport.
Zhou Shui went to Daji's hometown and found that Daji had moved away. He could no longer save their love.
In 2025, Zhou Shui and Daji finally met again in the conference room. The people in the room did not know their relationship, so the two pretended to be strangers.
