On a rainy night seven years ago, Xu Zhaoran received the "Zhaoran Protection Certificate" from Jiang Shubai's mother and agreed to "wait for me to come back."
When Jiang Shubai, a transfer student wearing an ill-fitting suit, appeared at the opening ceremony, he used ridicule to cover up the same note hidden in the secret pocket of the canvas bag.
The "well-matched" debate topics in the debate tear open class rifts. The mini-debate on the inside of the soda bottle cap, the password with the work license number written upside down, the overlap of the peach leaf tattoo and the embroidery of the canvas bag gradually reveal the share agreement signed by the two mothers and the inheritance conspiracy of the Jiang family.
Surveillance at a convenience store on a rainy night, recipe notes in the basement of an old house, and half a heart hidden in a white peach keychain allowed two teenagers tied by fate to spend ten years solving an equation about "class and love" amid the dislocation of "protection" and "being protected."
Concept: Xu Zhaoran (a tough and delicate debate girl)