The beginning of the story is——
"Hey, Gu Zhi, see you at the same place, don't forget."
"I know, Miss, I won't forget it."
…
The end of the story is,
"Song Zhihuai, I said I would protect you forever. Why don't you believe me?"
"Mr. Gu, you know, I don't trust anyone."
"But we once clearly-"
"What is it? We are just friends. Don't misunderstand me, Mr. Gu."
Song Zhihuai couldn't forget those past things, and neither could Gu Zhi.
"We are not qualified to be happy."
"Azhi, I owe you this life..."
Some people, even if they once loved each other so vigorously, can only forget each other in the end...
But they are not "some people". Their childhood sweethearts will eventually come back, no matter how long it takes.
Purpose: You are the only person I want to protect