After finishing their meal, Shen Yuan cleaned up the lunch boxes and threw them in the trash, then took Li Zhi’s water bottle and filled it with warm water.

"Why don’t you sleep in the middle during the nap? It’s colder by the aisle with the AC on."

Li Zhi nodded, and the two immediately switched seats.

To be honest, Shen Yuan was being quite considerate at the moment.

Shen Yuan was quite familiar with Li Zhi’s situation when she was on her period.

Young Master Li wouldn’t be in extreme pain, but she would get very tired—the kind where her energy just vanishes in an instant.

After getting Li Zhi settled, Shen Yuan took out a math test from his desk, ready to see if his math skills had improved.

’Even though the system enhanced my logical thinking ability, it might not show right away. But if I do a few more practice tests, I’ll probably start to feel it.’

Spreading the test open, Shen Yuan didn’t jump straight to solid geometry. Instead, he started with the multiple-choice questions.

Enhancement didn’t mean instant success.

He still needed to practice more. Rome wasn’t built in a day.

The multiple-choice questions were pretty simple at first, and Shen Yuan didn’t feel any improvement.

But by the time Zhou Shaojie returned, Shen Yuan was still wrestling with the multiple-choice section.

Zhou Shaojie glanced at Shen Yuan, then at Li Zhi who was already resting on her desk, and walked over to Yang Ze’s seat.

After adjusting his own chair, Zhou Shaojie stepped on Yang Ze’s chair and then crossed over to his own.

The whole sequence was executed in one smooth motion; clearly, it wasn’t his first time doing it.

After getting back to his seat, Zhou Shaojie didn’t have much to do, so he took out his vocabulary notebook and started copying and memorizing words.

Seeing how hard Shen Yuan was working, Zhou Shaojie didn’t want to be outdone.

The tip of his pen made rapid, rustling sounds on the scratch paper, and his brow furrowed and relaxed with the rising difficulty of the questions.

’Let P(x, y) be a moving point on the curve.’

Shen Yuan frowned, formulating the equation he needed based on the conditions given in the problem, and then began to solve it with the known information.

When his calculated result perfectly matched option B, Shen Yuan’s Adam’s apple bobbed as he swallowed a sigh of astonishment.

As the slight breeze from turning a page brushed past the ends of Li Zhi’s scattered hair, Shen Yuan was already plowing through the questions, reaching the last fill-in-the-blank problem with unstoppable momentum.

However, when faced with the final fill-in-the-blank, a probability question, Shen Yuan hit a bit of a snag.

The problem description alone was a massive wall of text.

But thankfully, there was no time limit. Shen Yuan read the question carefully twice, then casually jotted down an answer.

’Screw this stupid thing. It’s a waste of time.’

’Tackling a test is also about strategy.’

’When you encounter a problem you can’t solve, give up on it immediately.’

’Never get stuck on a low-point question for too long.’

’Mark it and come back later if there’s time.’

’If I really run out of time, then that’s my final answer.’

Seeing the three words "Free-Response Questions," Shen Yuan recalled what Li Zhi had said before.

—"Is it because the free-response questions are 18+ that you can’t solve them?"

’18+ my ass. As if a 17-year-old or a 19-year-old could solve them either.’

’Hilarious. They can’t solve them either.’

The first question was manageable, just an application of trigonometric functions.

Having been lectured by Li Zhi before, Shen Yuan had drilled trigonometric functions relentlessly and now remembered the formulas clearly.

He solved it with ease.

The second problem: an equation.

The first part was simple; he could solve it just by plugging in the numbers from the problem description.

The second part... hah, he couldn’t make heads or tails of it.

’I’ll come back to this later.’

The third problem: solid geometry.

As Shen Yuan shifted the test paper, the afternoon sun slanted through a gap in the curtains, slicing across the geometric figure.

’The proof... the auxiliary line should be drawn from...’

At that moment, Shen Yuan felt as if he were inside the geometric solid itself, mental feelers probing restlessly for the correct auxiliary line.

As they waved about, his motion of chewing on his pen cap suddenly froze, his fingertips hovering in mid-air.

It was as if an invisible thread had connected the problem’s conditions with the figure’s characteristics. The position for the auxiliary line, which would have normally required repeated trial and error, was now as clear as if it had been highlighted in red.

The complex three-view drawing of the solid automatically broke down into a 3D model in his mind. The spatial reasoning that once would have consumed an entire sheet of scratch paper was now instantly clarified by merely tracing a few axes on the desk with his fingertip.

An indentation from holding his pen remained on his fingertip, but his thoughts spun with increasing smoothness, like a precisely lubricated gear.

Even the slight movement of Li Zhi brushing against his arm in her sleep couldn’t disrupt his rapid pace of calculation.

His solution ended up using two fewer auxiliary proofs than the standard answer required, and as he finished, he unconsciously spun his pen in a beautiful arc.

As the cicadas’ chirping outside began to fade, Shen Yuan abruptly looked up from the sea of questions and realized he had already finished most of the test.

He looked at the solved problems on the test, then glanced at his scratch paper.

Shen Yuan suddenly realized he had used a third less scratch paper than usual.

’I’ve gotten stronger.’

Shen Yuan was absolutely certain.

Just then, the bell signaling the end of class rang.

Startled awake by the bell, Li Zhi groggily opened her eyes. The first thing she saw was Shen Yuan, sitting perfectly upright.

"You didn’t sleep?"

Hearing Li Zhi’s voice, Shen Yuan nodded.

"I’m scarily strong right now." 𝒻𝘳ℯℯ𝑤ℯ𝒷𝘯ℴ𝓋ℯ𝘭.𝑐ℴ𝑚

Shen Yuan looked directly at Li Zhi. "I think I’ve reached enlightenment!"

With that, Shen Yuan showed Li Zhi the major solid geometry problem he had just completed.

"Look, I solved it!"

Li Zhi looked at the problem for about ten seconds, then laid her head back down on the desk.

"Check your work again."

Shen Yuan froze. He placed the test back on the desk and began to carefully check his work.

And then he discovered something extremely awkward.

That solution of his, the one with two fewer auxiliary proofs than the standard answer? It was wrong.

Shen Yuan quickly tried to salvage the situation.

Although there was this one tiny problem, all in all...

Shen Yuan’s logical thinking ability had indeed improved.

But it came back to the same old saying: he still needed to practice more.

Only then could he truly make this ability his own.

Time flew by, and soon it was the fourth period in the afternoon.

No teacher came to take over the class, nor was it a study hall.

They moved books and desks, preparing for the official start of the monthly exams.

For the monthly exams, all they had to do was move their books outside the classroom, or just pile them up at the front by the teacher’s podium.

The lockers at the back of the classroom couldn’t hold much either.

Shen Yuan carried Li Zhi’s book basket and placed it in a spot next to the podium.

His own books, naturally, were put there as well.

Those who weren’t fast enough had to put their books out in the hallway.

Leaving books in the hallway was fine as long as it didn’t rain. If it did, it was a real pain.

The seating arrangement also had to be changed.

They went from the usual 3-3-3 layout to a 2-2-2-2 distribution.

Seven students per column, completely blocking the back door of the classroom.

Shen Yuan brought Li Zhi her dinner again.

It was the first day of her period, so Young Master Li was holed up at her desk.

But this state would only last for a day. By tomorrow, Young Master Li would be back at full health.

Ready to dominate the exam hall.

"Thanks."

Li Zhi glanced at the tomato-sauce rice in her hands, then at Shen Yuan’s beef rice.

"I want to eat yours."

"Hey, what the f—"

Shen Yuan’s lips thinned, but he still handed his own dinner over to Li Zhi.

While he ate, Shen Yuan took out his phone and searched online.

"Symptoms of a girl’s menstrual period."

One of the results said: "Increased craving for sweets or high-calorie foods."

’Well, that certainly fits Young Master Li.’