Zhengnian even wrote it down in a notebook so that he would not forget it.

But he was too busy at work, especially when he was busy with experiments and results, he forgot the date.

It was not that he forgot Chuxia's birthday, but that he forgot what day it was today.

"Hello?"

Chuxia's gentle voice came from the other end of the phone, with a slight rise at the end, and a bit of coquettishness.

Cen Zhengnian came back to his senses, put his hand down from his forehead and said: "Chuxia, I'm sorry, I forgot that today is your birthday."

Chuxia's natural smile came over: "I thought it was something else, just a birthday, you forgot because of work, I don't blame you. And now you remember it too."

Cen Zhengnian's voice was more guilty: "It was Da Zi who reminded me."

Chuxia laughed even louder: "Do you know what gifts An An and Da Zi gave me today?"

"What?" Cen Zhengnian's attention was indeed diverted: "An An and Da Zi picked a rose-red scarf together, and Da Zi gave me a set of secret test papers of key high schools in Beijing. If it were someone who didn't want to do the test papers, how would you feel when seeing that test paper?"

Chuxia herself was very happy. She was in need of this kind of test paper now, and she would accept anyone who came. But if it were an ordinary student who hated doing test papers, she would have a face full of resentment.

Cen Zhengnian couldn't help laughing: "Da Zi is kind-hearted."

"I know. But I'm telling you, if you give me a scarf or lipstick in the future, don't give me rose-red or pink. Remember that."