Xiao Lin had undergone numerous physical examinations before his transmigration, whether during school or work, and he could say he had ample experience with them.

However, Xiao Lin never expected that after crossing into this world of cultivation, he would have to go through another physical examination.

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Xiao Lin: Memories of the past suddenly attack me!

"Left... left... up... right... down... is that about right?"

Xiao Lin removed his hand from his left eye and asked Yu Qiaoxi, who was standing in front of a board not far away.

Whether it's the same world, the same dream, or history's uncanny resemblance, at this moment, the board beside Yu Qiaoxi looked very much like the vision test chart Xiao Lin had seen before his transmigration. The few differences might be that the symbols on the board were no longer the classic "E" but arrows... Perhaps in Yu Qiaoxi's original world, this was how they tested vision?

"Yes, that's about it. We've tested almost everything that needs testing." Yu Qiaoxi took out a small notebook and a clearly modified brush, writing as she nodded.

"I was just wondering, is it really necessary for us cultivators to test our vision?" Xiao Lin raised his hand to rub his temples.

"This vision test chart is made using secret methods from ancient texts, with a special array formation embedded in it, so it's specifically for testing the vision of cultivators," Yu Qiaoxi explained as she quickly packed away the "physical examination" tools.

"But does vision have anything to do with attracting Tribulation Lightning?"

"Senior Brother."

Upon hearing this question, Yu Qiaoxi immediately turned her head to look at Xiao Lin seriously, speaking in a measured tone, "When we explore certain matters, we must maintain a rigorous attitude and consider all possibilities. You think vision has nothing to do with attracting Tribulation Lightning, but do you have evidence to prove it?"

"Uh... seems like I don't."

"Therefore, this test is very necessary. Only by truly proving with facts that there's no connection between the two can we completely rule out this possibility."

"... So... after the test, does my vision have anything to do with attracting Tribulation Lightning?"

"Currently, it seems to have no relation."

"…"

Xiao Lin watched Yu Qiaoxi write and draw in her notebook, thinking to himself that Fifth Junior Sister's previous world seemed to be a place with a strong academic atmosphere...

But can a theoretical knowledge system really explain and deduce the metaphysics of this world? What exactly does Fifth Junior Sister study in her spare time? How to scientifically cultivate?

As his thoughts wandered, Xiao Lin suddenly saw Yu Qiaoxi sit down in front of him.

"Senior Brother," Yu Qiaoxi said, raising her hand to push up the bridge of her nose.

Hey, hey, hey, you don't have glasses there, don't push air...

Xiao Lin's mouth twitched slightly.

Yu Qiaoxi, seemingly unaware of her subconscious habitual action, continued, "Based on the test results, I think the attention of the Sevenfold Tribulation Lightning might be related to your physique or bloodline."

"Oh?"

Hearing this, Xiao Lin couldn't help but be taken aback.

After all, what Yu Qiaoxi said didn't sound like nonsense but seemed well-prepared...

No way, did she really come up with a scientific method for cultivation?

"What do you mean by that?" Xiao Lin quickly focused and asked.

"The specific conclusion cannot be definitively drawn based on the current test results," Yu Qiaoxi said, glancing at her notebook again, "By the way, do you have any clues or leads, Senior Brother?"

"Uh... I do have something, but I'm not sure if it has anything to do with Tribulation Lightning..." Xiao Lin said, rolling up his right sleeve to reveal the Ox-Head Mark.

Since Leng Youxue had already seen this mark and didn't warn him about it, it should be fine to show it to others. Given that Fifth Junior Sister Yu Qiaoxi had indeed shown some "research" capability, Xiao Lin thought it was worth letting her take a look.

"What is this?" Yu Qiaoxi's enchanting eyes fell on the Ox-Head Mark, her eyebrows slightly raised.

[A transformation mark? Can you turn into a minotaur?]

The minotaur you're talking about should just be a literal minotaur, right...

Xiao Lin internally retorted, then briefly recounted the process of how the mark appeared.

"Although the two seem unrelated, since this mark appeared afterward, I think it might be a clue." Xiao Lin had long suspected this, but without a way to verify it, he had to let it go.

"Has Master seen it? What did she say?"

"Master's opinion is that you should solve it yourself."

"That does sound like something Master would say."

Yu Qiaoxi nodded, then took out some uniquely shaped, clearly self-modified magical tools, her enchanting eyes lighting up, "But since Master told you to solve it yourself, it means the mark isn't very dangerous, so we can study it without worry."

Seeing Yu Qiaoxi take out a scalpel-like magical tool, Xiao Lin suddenly regretted telling her about this.

...

...

As it turned out, a rigorous research attitude doesn't necessarily lead to conclusions.

"Can't find a connection, there's no connection at all..."

Yu Qiaoxi looked at her notebook, her naturally alluring face full of frustration.

"If you can't find it... just let it go..."

Having taken a pill, Xiao Lin waited for the wound on his right arm to heal while sincerely advising Yu Qiaoxi.

He had heard of bloodletting therapy in the West, but never of bloodletting research...

He was genuinely afraid that if the research continued, Yu Qiaoxi might disassemble his arm... Given her focused attitude earlier, it wasn't impossible.

"Yes, for now, I can't think of a better method..." Yu Qiaoxi noted a few more things in her notebook with her special brush, "However, I do have an idea about how to activate this mark."

"Really..."

Looking at the healing wound on his right arm, Xiao Lin wasn't particularly eager to try Yu Qiaoxi's idea.

"Yes, and we can experiment right now," Yu Qiaoxi said, putting down her notebook and eyeing the scalpel-like magical tool on the table.

"Hey, hey, hey, what are you going to do? My wound isn't even healed yet!" Xiao Lin panicked, grabbing the magical tool with his left hand.

"I was just going to put it away..."

"Really? I don't believe you!"

"..."

While Yu Qiaoxi was speechless, Ning Yunmiao's voice suddenly came from outside the courtyard.

"Roast crane is here... huh? Huh huh?"

Ning Yunmiao, carrying a food box, opened the courtyard door to see Xiao Lin holding a small knife, with several wounds on his right forearm. Her bright eyes immediately lost their sparkle.

"Stop... stop! Please stop! Senior Brother, don't do anything rash! At worst, I'll give you all the snacks under my bed! Senior Brother, don't take your own life!"