Zheng Fa had a bit of a headache.
He had ample reason to suspect that the blue-clad girl before him was a calculator reincarnated.
She was simply too good at calculating!
Besides basic arithmetic, she had also mastered the Heavenly Origin Technique—this world's form of mathematics, similar to solving polynomials.
What astonished Zheng Fa even more was that the girl demonstrated a technique called the Concatenation Technique, which closely resembled the limits he knew.
Any problem requiring calculation within the scope of the college entrance exam, no matter how complicated, she could answer accurately and swiftly.
Her only weakness was probably proofs and deductive reasoning.
She could not even understand why proofs were necessary.
From her, Zheng Fa caught a glimpse of the mathematical culture of the Xuanwei Realm: practicality over logic.
"Any more?" The girl set down the problem she had just answered and looked up, her face full of pleased satisfaction.
Zheng Fa realized that the harder and more twisted a problem was, the less it seemed designed to be solved, the more excited this woman became!
"No more!"
Zheng Fa flatly denied it. Otherwise, he felt this insatiable girl could play this perverse game of posing and solving problems for an entire year.
"Not even one?"
"Not even one!"
The girl stared at his forehead, suspicion filling her eyes.
Zheng Fa strongly suspected she wanted to pry open his skull and see whether there really was nothing left inside.
"Senior Sister Zhang? Why have you come here?"
A woman's voice broke the silence between them. Zheng Fa turned his head and saw Seventh Young Master standing behind a girl in red. It was the red-clad girl who had spoken.
"Zheng Fa, this is my sister!"
Seventh Young Master introduced her.
"First Miss!" Zheng Fa rose and bowed,