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.

The story focuses on the real and delicate growth process of Nie Xiguang, a lively, cheerful and energetic female college student, as she walks out of campus and enters the workplace.