"I'm so tired, so tired, that old man's advanced calculus class is really hypnotic..."
Haiwen Star.
Under the blue sky, traffic flowed, and tall buildings stood majestically.
Su Lianqing was an ordinary science university student. As soon as the hypnotic advanced calculus class ended, she immediately rushed out of the school gate with a baguette in her mouth, yawning, and ran towards a nearby café to refresh herself.
"Studied calculus in high school, studying calculus in university, studying and studying, it's all about inverse functions... sigh...!" She sighed heavily, pondering what to do about the upcoming final exams.
"Ding-dong—ding-dong—"
The café doorbell rang crisply as Su Lianqing pushed open the wooden door, a warm current mixed with the aroma of ground coffee beans hit her face.
She habitually walked towards her usual spot by the window in the café. However, today, someone was already there.
"Huh?" She paused in surprise.
