Generally speaking, worlds with low mystery levels and dominated by humans would be directly absorbed.
As for the process of this absorption—whether through war or peace—that remained unknown.
However, given the military power of the world he now inhabited, it should be quite easy to forcefully suppress them.
The world where Jotaro came from—JoJo's Bizarre Adventure—should have been absorbed into the main world in this manner.
That was why Jotaro could attend classes here like an ordinary student.
Of course, from what Lin Chen could tell, he hadn't awakened his Stand yet.
In the JoJo's Bizarre Adventure world during this time period, Stand users were extremely rare after all.
In this high-martial-arts world, there was currently no combat system for Stand users either.
Lin Chen felt that the main world probably hadn't even discovered that the JoJo world had Stand users.
As for worlds with high mystery levels and comparatively higher power tiers—
They could roughly be divided into two types: one was chaotic and xenophobic, which would basically result in hostile warfare.
The other type was orderly and had political entities, in which case they would choose to establish diplomatic relations and learn from each other's systems.
For example, the Naruto world and the One Piece world from his memories.
In his brief memory fragments, there had been images on television of high-level officials meeting.
As for the Dragon Clan world where Xia Mi came from, Lin Chen's memories indicated that diplomatic relations had been established.
But Xia Mi was definitely not like Jotaro. She had absolutely smuggled herself in.
Otherwise, with her strength as the Dragon King Jörmungandr, she wouldn't be secretly living as an ordinary high school girl under the identity of Xia Mi.
"Now then, everyone begin individual practice."
The swordsmanship instructor's words pulled Lin Chen back from absorbing his understanding of this world.
Soon, the students in the swordsmanship classroom began pairing up in twos, engaging in practical sparring.
Breathing techniques could better train one's physique.
However, the swordsmanship class focused more on improving combat skills and experience—physique training wasn't the main content.
Physical training was something that relied more on self-discipline.
Even specialized physique classes could only teach some efficient training techniques.
"Here I come, Lin Chen."
Standing in front of Lin Chen was a male student wearing long-sleeved athletic wear.
The boy's gaze was somewhat harsh and fierce, giving off the impression that he was always in a bad mood.
Lin Chen's memories stirred, allowing him to quickly recognize the boy in front of him.
However, his expression also became peculiar.
A classmate—Natsuki Subaru.
Yet another character from an anime world, and a protagonist at that, from the Re:Zero world.
No, to be precise, the world he came from was an ordinary person's world—he would later transmigrate to the otherworld of Re:Zero.
The current Subaru hadn't transmigrated yet; he was just an ordinary high school student.
Come to think of it, their class really was a hidden dragon and crouching tiger situation.
By now, there were already two anime protagonists and one super BOSS.
Bang.
Two wooden swords collided with each other.
In an instant, Lin Chen felt a heavy pressure bearing down on him.
Natsuki Subaru's talent was considered quite good among ordinary people. Although he wasn't particularly tall—about half a head shorter than Lin Chen—
His strength was quite impressive.
At least it was somewhat stronger than Lin Chen's current level.
"You don't seem very focused, Lin Chen. Be careful or you'll get hurt."
Natsuki Subaru reminded him loudly.
This drew the attention of some people around them.
He seemed to be socially extroverted, with less shame than most people, and liked to do things that attracted attention.
But Lin Chen knew that this seemingly extroverted Natsuki Subaru was actually extremely insecure.
Living in the shadow of his excellent father, he was not only insecure but had developed a twisted perception of interpersonal relationships.
He believed that if he wasn't the center of attention, he would be abandoned.
So he often used this method to attract others' attention, though this frequently made him look foolish.
Lin Chen shook his head lightly.
However, the reminder was indeed correct.
This was sparring—if he wasn't focused, he really could get hurt. Wooden swords were hard and quite heavy.
Although they couldn't compare to real swords, taking a hit from one wouldn't be light either.
Lin Chen concentrated his attention and adjusted his breathing rhythm.
Breathing technique swordsmanship placed the greatest emphasis on breathing rhythm—if one's breathing became chaotic, their strength would drastically decrease.
He inherited his predecessor's memories, allowing him to pick things up much faster than a complete beginner.
The moment he gripped the sword, he felt a strange sense of familiarity. Although he was a bit flustered at first,
Under Natsuki Subaru's guidance through their exchanges, he quickly fully absorbed his predecessor's abilities.
Through this kind of sparring, Lin Chen became increasingly excited.
In his previous life, he had lived in an ordinary world, his body constantly in a sub-healthy state.
But now, using breathing techniques, he could tangibly feel the increase in speed and strength.
Although this enhancement was still at an ordinary person's level, it was far superior to his previous life.
"Now that's more like it. I'm getting serious now."
Natsuki Subaru announced loudly again.
Lin Chen no longer cared much about the gazes that Subaru attracted from those around them.
Transmigrating to a high-martial-arts world, the improvement from absorbing memories, Demon Slayer breathing techniques, the Martial Arts Panel—
These had brought him extremely strong positive feedback in a short time, making him increasingly excited.
This intense positive feedback made him focus even more on breathing, swordsmanship, and self-improvement.
Natsuki Subaru breathed forcefully, his breathing sounds clear enough for Lin Chen across from him to hear distinctly.
This was the precursor to a breathing technique swordsman going all out.
"Flame Breathing: First Form: Unknowing Fire."
Natsuki Subaru's speed was extremely fast, bursting forth with speed greater than his normal state.
In the blink of an eye, he closed in on Lin Chen.
He raised the wooden sword in his hand high and brought it down in a slash.
Inhale.
Lin Chen likewise took a large breath, slightly shifted his body position, and slashed out horizontally with the wooden sword in his hand, smooth as a water's surface.
"Water Breathing: First Form: Water Surface Slash."
The two wooden swords crossed in an X-shape, producing an even louder sound than before.
Of course, in the current classroom, this didn't count as anything particularly noteworthy.
Neither Lin Chen nor Natsuki Subaru could be considered top students.
Their sparring didn't attract much attention.
The classmates who had been drawn by Natsuki Subaru's voice earlier only glanced over before continuing their own training and cultivation.
Not far away, the little dragon girl glanced over a couple more times.
After seeing that Lin Chen still possessed that ordinary level of strength, she stopped paying attention.
Indeed, quite ordinary.
As a third-year high school student who hadn't even mastered breathing techniques proficiently yet, his talent could be said to be quite mediocre.
Although Xia Mi didn't have a Martial Arts Panel, she was hiding considerable strength herself and could see Lin Chen's current capabilities at a glance.
In the textbooks, breathing techniques were divided into four stages.
The first stage was the beginner stage—learning the breathing rhythm and training one's physique.
During this period, breathing techniques could provide small enhancements to one's physique and increase combat effectiveness.
The second stage was when one began to master Total Concentration Breathing.
So-called Total Concentration Breathing was a breathing technique that concentrated one's spirit and inhaled a large amount of air in one breath, instantly amplifying the body's explosive power.
Beginners generally had a very low success rate, but with continuous practice, the success rate would steadily improve.
Finally reaching the third stage—being able to skillfully master Total Concentration Breathing.
Being able to use Total Concentration Breathing anytime, anywhere, in any position.
At this stage, one could combine Total Concentration Breathing with swordsmanship, unleashing power that surpassed normal humans.
They could even easily cleave through giant boulders.