A Scientific Urban Detective

“We'll leave the microscopic scale aside for now. First, we need to focus on quantity!” After rearranging all the small cubes into a large cube, Kaibara Mitsuki said, “The core principle of our school lies in the accumulation of quantity, where quantitative changes lead to qualitative changes. Lin Wuming, what is the maximum number of individual units you can control simultaneously?”

Lin Wuming thought for a moment and replied, “At my limit, probably around forty to sixty? But I'm most proficient with twelve.”

As he spoke, Lin Wuming manipulated twelve cubes, sending them flying into the air, dancing around with exceptional agility, like butterflies flitting through flowers.

His performance was even better than Kaibara Mitsuki's from before. However, the quantity was overwhelmingly insufficient.

Kaibara Mitsuki immediately grasped the essence, nodding and saying, “A very intuitive number. But it's rare to be able to operate them so skillfully to this extent.”

To put it another way, Lin Wuming's current control had become 'instinct'.

Because humans have ten fingers, Lin Wuming initially imagined ten psychic tentacles extending from his fingers when he was busy in the kitchen.

Over time, his proficiency naturally increased.

After his hands recovered, Lin Wuming added the movements of both hands to the original foundation, so it was like having twelve hands working simultaneously.

Truly 'as easy as using one's own limbs,' so naturally, it was as skilled and natural as a normal bodily instinct.

That's why Kaibara Mitsuki said it was a 'number that aligns with intuition'.

“But that's still far from enough,” Kaibara Mitsuki said. “Practice more, Lin Wuming. Don't let your body and common sense restrict you. Nen is a much freer power. We must achieve operational quantities in the 'tens of thousands' to be considered beginners.”

Lin Wuming nodded, “I understand.”

“These are for you.” Kaibara Mitsuki pushed the cubes on the table in front of Lin Wuming. “Once you improve your proficiency, you can continue to increase the number.”

These cubes were specifically designed as tools to aid in Nen training.

Because Nen is an invisible and intangible power, no one can sense it except for the Nen user themselves—unless they are hit by a Nen attack.

And even for the Nen user, this supernatural power is often difficult to grasp.

Within the range that humans can usually perceive directly—that is, between about ten centimeters and ten meters—Nen is a convenient ability that grants you whatever you desire.

But beyond that range, it cannot be handled with just 'instinct' and 'subconsciousness'.

This is even more true in the microscopic realm, because the human brain cannot directly comprehend units like micrometers or even nanometers.

Unless they are exceptionally gifted, Nen users find it difficult to break down their Nen into such minute scales.

This requires training. Kaibara Mitsuki's method is to use solid props like cubes to help Nen users familiarize themselves with the concept of 'a huge number of tiny objects'.

After becoming familiar with the cubes, they can be replaced with smaller objects such as beans, rice grains, sand grains, and dust...

Ultimately achieving precise manipulation at the cellular or even molecular scale.

If one could go further and reach the level of manipulating atoms, they could probably ascend to Level 5 on the spot, right?

Lin Wuming shook his head, dispelling this unrealistic fantasy.

Finally, Kaibara Mitsuki not only gave Lin Wuming a set of 'teaching aids' but also emailed him a copy of the information he had compiled—essentially imparting his martial arts secrets.

Before leaving, Kaibara Mitsuki also suggested that Lin Wuming minor in two 'mental cultivation' subjects—microscopic physics and human anatomy.

If Lin Wuming insisted on using Nen to accelerate himself, these two professional courses would also be crucial.

Fortunately, there were relevant professionals where Lin Wuming currently resided, and more than one.

The security guard teacher's main job was as a teacher, and the Family Side apartment building was home to many university lecturers, even academic experts at the professor and associate professor level.

There were naturally teachers who could teach microscopic physics and human anatomy, and quite a few of them.

So, in the following days, Lin Wuming took advantage of his confinement to undergo a thorough 'secluded training'.

In addition to practicing the 'secrets' taught by Kaibara Mitsuki, he would also regularly learn physics and biology from professional teachers.

Lin Wuming made the most of his Level 3 brainpower and 'bullet time'.

The teachers at Family Side were still welcoming to this eager student and were happy to give Lin Wuming lectures. Even teachers in subjects other than physics and biology planned to teach him something.

Lin Wuming's potential was also pushed to the limit—he had never been so serious when he was in college in his previous life, or even in high school.

He even felt that there was no need for him to go to Zechuan Middle School as a junior high school student next year. He might as well be specially recruited to go to university directly.

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“No, this is only temporary!” When he was finally free in the late night, Lin Wuming would “wake up” again—his ambition after transmigrating wasn't to grind in academics and career, but to re-enjoy a leisurely student life.

Skipping grades or something, forget about it.

Once he gets through this tribulation and solves the 'Misaka Sisters' incident, he can enjoy life with peace of mind!

Lin Wuming secretly made up his mind.

“That's right, as long as I wait for Misaka…”

“Hmm?” The tea-haired girl sitting in front of Lin Wuming tilted her head and looked over. “What's wrong, Wuming-senpai?”

“No, it's nothing,” Lin Wuming shook his head calmly, coming back to his senses as he looked at Misaka Mikoto, who had come to visit him. “Just my mumbling, don't mind it.”

“Wuming-senpai looks very tired,” Misaka Mikoto said. “I heard that you've been caught by the security guard teachers for forced tutoring recently. It seems that's really the case.”

“No, the one getting tutored should be Kohachi Toumei,” Lin Wuming shook his head. “I'm properly studying… and it's professional courses that only universities have.”

“Oh, is that so.” Misaka Mikoto wasn't interested in topics like tutoring. “By the way, this is the souvenir I bought.”

As she spoke, she handed over a food-grade container.

“Thank you…” Lin Wuming took it and opened it. “Strawberry cake?”

“Yeah, it's hard to get in line at that store,” Misaka Mikoto nodded. “Kohachi said that this is Wuming-senpai's favorite, so I specifically waited in line for two hours today to buy it.”

“My favorite…” Lin Wuming looked at the strawberry cake in the box speechlessly. “Anyway, thank you very much for your kindness. Thank you for waiting in line…”

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