"Zhaozhao, what's wrong with you?"
As soon as Shen Zhaozhao entered the classroom, Sang Youyou held her face and looked from side to side.
"Don't even mention it, I had a cup of milk tea at midnight last night and couldn't sleep." Shen Zhaozhao was listless, like a sapling ravaged by stormy weather.
Sang Youyou sympathetically let go of her.
Shen Zhaozhao yawned and then, groggy, returned the Olympic Mathematics textbook she had borrowed from Sheng Chuyi the night before.
"You finished it all?" Sheng Chuyi looked at her somewhat surprised.
Olympic Mathematics wasn't like other literature books that could be understood with just one read; one needed to thoroughly grasp the content.
Shen Zhaozhao nodded, pointing at her dark circles, "See? These are the proof of my overnight ordeal."
