"I wonder if there'll be a chance to visit the Demon Slayer world in the future."
Lin Chen swung the wooden sword in his hand, thinking to himself.
In the Demon Slayer world, before the main plot began, the Kamado family represented a significant opportunity.
Not only did they have Sun Breathing—
They also had the direct teachings of Kamado Tanjuro.
This person was limited by his body, so his raw strength might not have been particularly impressive.
But his realm of understanding was quite high.
Currently, even the school only knew that breathing techniques had four stages.
From beginner to the Pillar's Total Concentration: Constant.
They should have connections with the Demon Slayer Corps and knew the level of a Pillar's strength.
But Lin Chen knew that above that, there was still the Transparent World.
The Transparent World was the highest realm after breathing techniques had been utilized to their absolute limit.
Tanjuro's body wasn't up to par, but his mastery of breathing techniques could be said to compete for second place with Kokushibo, aside from Yoriichi.
The former relied purely on talent, while the latter depended on hundreds of years of accumulation.
[Water Breathing Swordsmanship Proficiency +1]
[Water Breathing Swordsmanship: LV1 (8/10)]
As Lin Chen pondered, the panel before him flickered, indicating his progress.
Water Breathing Swordsmanship was at LV1, progressing quite rapidly.
Lin Chen glanced at his watch.
He had practiced breathing technique swordsmanship at full effort for nearly an hour, and his proficiency had increased by one point.
Combined with his earlier sparring with Natsuki Subaru—
When his breathing technique broke through, his swordsmanship had also gained one point of proficiency.
Two hours, two points of swordsmanship proficiency.
Advancing to LV2 shouldn't take much time.
Once both swordsmanship and breathing techniques reached LV2, his combat power should increase considerably.
There were still two months until the college entrance exams.
With the Martial Arts Panel, he should see significant improvement.
If he could get into a good university, Lin Chen would definitely give it his all.
In a high-martial-arts world, a good martial arts university also meant better resources.
It was the same in his previous life's real world—the higher the reputation of a school is, the more pronounced this resource gap becomes.
"Alright, class dismissed."
The swordsmanship instructor clapped his hands and directly announced the end of class.
Then he quickly slipped out of the classroom.
He left work quite decisively, absolutely refusing to linger in the classroom for even one extra minute.
Unlike the liberal arts classes pursuing civilian careers—
Martial arts classes only had major courses: combat techniques, physique training, and occasional cultural studies.
The swordsmanship class lasted two hours.
Lin Chen and Natsuki Subaru had sparred for about an hour, completing his breakthrough.
Then he practiced Water Breathing swordsmanship for another hour, which brought them right to dismissal time.
Lin Chen handed his wooden sword to the classmate responsible for collecting them, feeling his entire body aching terribly.
The positive feedback from rapid improvement had ended, leaving only the fatigue from intense training.
His physique wasn't particularly strong—his body level was only 1.5.
In this world, physical fitness and mental power were both quantified as the main indicators for evaluating student performance.
Level 1 was the average body level of an ordinary healthy adult with no mystery whatsoever.
In this world, this average actually wasn't particularly low.
And Lin Chen's 1.5 level was just slightly above the average of ordinary adults in this world.
This physique really wasn't strong—quite ordinary, in fact.
Because his predecessor had been an ordinary person with mediocre talent.
People like Jotaro already had quite high base stats.
However, Lin Chen wasn't worried.
Breathing techniques themselves had the effect of excavating the body's potential and improving one's physique.
As long as he elevated his breathing technique to a higher realm and continuously trained in a breathing technique state, his physique would naturally become stronger.
As for the limit of how much breathing techniques could improve one's physique—that wasn't something to worry about at all.
This world had no shortage of miraculous cultivation systems.
With the Martial Arts Panel, he wasn't worried about his upper limit at all.
Besides, humans had limits, but what if one stopped being human?
After the swordsmanship class ended, it was six in the evening.
Lin Chen bid farewell to his two good friends, Jotaro and Natsuki Subaru.
Following his predecessor's memories, he headed toward the rental apartment where his predecessor had lived.
"Still worried about not having enough talent?"
"Still anxious about insufficient strength, poor grades, and being unable to get into a good university?"
"Just purchase one vial of Hybrid Serum—just one vial—and you can immediately become a hybrid."
"Whether it's physique or mental power, both will receive massive enhancements."
"And if you're lucky enough, you might even have a chance to awaken the miraculous ability called Word Spirits."
Walking down the street, Lin Chen passed by a large shopping mall when the advertisement on the big screen caught his attention.
Lin Chen looked at the advertisement on the big screen, the corner of his mouth twitching slightly.
However, in a world that already had a Dragon King like Xia Mi, this wasn't unacceptable.
He stopped in his tracks and quietly watched the entire advertisement.
One injection of serum could turn someone into a hybrid like those in Dragon Clan.
Honestly, Lin Chen was somewhat tempted.
The hybrids in Dragon Clan were quite formidable.
In the Dragon Clan worldview, dragon genes were superior to human genes.
So a hybrid's stamina, intelligence, physical fitness, and even appearance were comprehensively superior to ordinary humans.
In other words, one injection would immediately elevate Lin Chen's current overall capabilities by a significant margin.
He'd even get those cool golden eyes.
Unfortunately, it was too expensive.
The salary levels in this world were about the same as his previous life.
The average salary for ordinary office workers was around six thousand.
And the price of one vial of Hybrid Serum was two hundred thousand.
This kind of serum was targeted at wealthy people.
Or ordinary families willing to empty their wallets to take a gamble for their children.
A poor orphan like Lin Chen relied on government subsidies just to support himself.
Forget about buying this kind of luxury serum.
"This serum has terrible cost-effectiveness. It's best not to buy it, Lin Chen."
A familiar voice sounded beside Lin Chen, accompanied by a faint, pleasant fragrance.
"Class Monitor."
Lin Chen was startled. He saw the little dragon girl standing beside him, though he didn't know when she'd arrived.
However, he quickly regained his composure.
After all, he'd already seen her several times—Lin Chen could get used to Xia Mi's appearances.
Moreover, he'd already figured it out.
The danger level of Xia Mi's personality wasn't particularly high. She had infiltrated the high-martial-arts world to learn.
An ordinary person like him without any big shot's marking couldn't possibly attract too much of Xia Mi's attention.
He just needed to interact with her like an ordinary classmate.
"You just said this serum has terrible cost-effectiveness?"
Lin Chen asked.
"Mm, first there's the compatibility issue—dragon blood produces rejection reactions in most people."
"Even if you're extremely compatible, this serum can at most help you reach C-rank bloodline."
"C-rank bloodline?" Although Lin Chen knew about hybrid bloodline rankings, he still had to pretend to know nothing about it at this moment.
"Mm, the Hybrid Serum comes from the L-21 world. That world ranks hybrids from high to low as S, A, B, C, D, and E—six levels total."
"D-rank is basically ordinary people like you, Lin Chen."
Xia Mi casually extended her index finger.
The fingertip pointed right at Lin Chen's nose. If it were someone else, this gesture would seem somewhat rude.
But under Xia Mi's beauty and aura, doing this gesture only made her seem approachable.
"C-rank is mainstream, but this can only barely be called a hybrid. The enhancement to oneself is quite limited, and awakening Word Spirits can only depend on luck."