Of course, the internal energy here has nothing to do with cultivation in novels.
The internal energy here is entirely a method of circulating qi in martial arts, focusing on posture, power generation, and breathing. The "qi" circulating within the body must maintain a rhythm, which greatly enhances combat power.
Under the augmentation of this energy, many moves that Qing Feng found useless when practicing in his youth suddenly became incredibly sharp.
It turned out that it wasn't that the moves were redundant, but that people had lost the method of qi cultivation.
The most obvious manifestation of this was Tai Chi.
Although Tai Chi emphasizes overcoming the rigid with the soft, in free combat, facing opponents with strong physiques, it was difficult for Tai Chi to achieve the effect of striking later but arriving first, and overcoming the rigid with the soft.
At that time, Tai Chi had been simplified and gradually evolved into a form of exercise for fitness and health. When people mentioned Tai Chi, they often thought of elderly gentlemen practicing slowly in the morning.
In reality, Tai Chi is the martial art that emphasizes breathing and qi circulation the most. If the internal energy is cultivated properly, its power would naturally be astonishing.
However, due to the lack of internal energy, Tai Chi was left with only its moves.
And these moves gradually turned into mere flourishes.
After Qing Feng combined energy with Tai Chi, his entire being felt revitalized. He had never had such confidence in Tai Chi.
The more he practiced, the more he realized that combining the moves of Tai Chi with the energy within his body would become his strongest martial art!
Coincidentally, just as Qing Feng had learned the method of combining Tai Chi and energy.
On this day, a team of survivors arrived, a group of Japanese people.
Leading them was Kōjima, a third-dan black belt in Karate and the runner-up in the previous free combat competition.
Kōjima and Qing Feng had met off the competition stage, so he proposed a private match.
Qing Feng readily agreed.
After only three rounds, Kōjima, who was at the same stage as Qing Feng in terms of strength, was defeated!
Previously, Kōjima, with the advantage of his Karate, had been invincible among his peers. Today, however, he was defeated by Qing Feng.
Qing Feng's fist was only one centimeter away from Kōjima's nose. If Qing Feng wished, smashing down with this punch would have crushed Kōjima's skull, and Qing Feng could have collected the corpse to further improve his strength.
However, Qing Feng chose to hold back. After all, the match was to determine victory or defeat, not life or death.
Kōjima, spared from death, immediately praised Qing Feng profusely, calling him exceptionally skilled, possessing great vision, and having the demeanor of a master, among other flattering remarks.
Three days later, Kōjima led over a hundred Japanese people in a sudden raid on Qing Feng's camp.
Although Qing Feng possessed unparalleled personal combat prowess, being unstoppable by anyone.
However, the other members of the camp perished under the onslaught of various traps, poisoned arrows, toxic mist, and special abilities.
In the end, only Qing Feng and his junior sister, Hu Ruolin, remained.
At this point, the Japanese also suffered more than half their casualties, but they still held an overwhelming numerical advantage.
Moreover, as their teammates fell, these Japanese quickly collected corpses and rapidly grew stronger.
Therefore, although their numbers decreased, their combat power increased significantly.
At this critical juncture, everyone suddenly felt their internal power vanish instantaneously, followed by a powerful force that firmly pinned them to the ground.
Then, a man carrying a leather suitcase slowly emerged from the shadows.
His gaze swept over the faces of everyone prostrate on the ground with a playful, mocking look, as if admiring his masterpiece or carefully selecting his specimens.
After a moment, he waved his left hand, and a large iron cage appeared out of thin air.
The man sifted through them, throwing anyone he fancied into the iron cage, and directly killing those who displeased him.
More than twenty Japanese were captured, and five were killed.
Qing Feng's junior sister, Hu Ruolin, was also taken away.
Those imprisoned in the cage were still unable to exert any strength, like cattle and sheep awaiting slaughter, huddled in corners.
At this point, the man nodded with satisfaction.
He waved his hand again, and a portal opened in the air. He forcefully dragged the iron cage and slowly entered through the portal.
Subsequently, the portal abruptly closed.
At the very instant the portal closed, Qing Feng felt his energy surge through his entire body.
He erupted with fury, unleashing a set of Bajiquan techniques that took down Kōjima and several of his henchmen, and then immediately collected their corpses.
A flash of golden light appeared, and Qing Feng's strength upgraded again, easily slaughtering the remaining Japanese!
From this, he understood a principle: no matter how friendly or polite the Japanese appeared on the surface, no matter how much they spoke of benevolence and righteousness, it was only because they lacked sufficient strength.
Once they had the ability, they would bite you viciously!
Since this was the apocalypse... before he died, he would at least make the Japanese feel despair!
Thus, killing Japanese became Qing Feng's daily routine. As soon as he saw Japanese people, he would kill them before talking.
And Hu Ruolin, who was abducted, was not only Qing Feng's junior sister but also the woman he loved.
Qing Feng's goals for the rest of his life were to kill as many Japanese as possible and to find a way to locate the man with the leather suitcase to rescue his junior sister.
As for how to overcome that feeling of helplessness, how to defeat the suitcase man, Qing Feng had no clue.
But he knew one thing: he would never give up because the enemy was strong, nor would he abandon the person he loved out of fear of death.
He would rescue the one he loved, even at the cost of his own life.
As for how to rescue her, how to fight, he would only know after finding the enemy.
Along the way, Qing Feng had no idea how many Japanese camps he had wiped out or how many Japanese he had killed.
Initially, he wanted to repent for his actions, questioning whether such indiscriminate killing was right.
However, every time he found evidence of their torture of other survivors and their crimes in Japanese camps, it only strengthened Qing Feng's resolve. In the apocalypse, no one was without blood on their hands; everyone was not innocent.
Therefore, the Japanese all deserved to die!
With this realization, Qing Feng felt much lighter, and his killing of Japanese became even more vigorous!
It was only recently that he found a clue about the suitcase man.
Before Qing Feng could make a move, this small group of Japanese was wiped out by Zhang Chen.
Qing Feng was greatly astonished by Zhang Chen's combat power.
This was because he could tell that Zhang Chen knew no martial arts at all; he was just throwing punches and kicks randomly. Not only were his movements utterly disorganized and full of openings, but his method of generating power was completely wrong. It was like the punches thrown by any random person on the street who had never fought before.
Yet, these wild swings of his fists contained a terrifying power!
To eliminate three high-level awakened Japanese with one punch?!
Even with his most potent strike, Qing Feng could not achieve such an effect.
Moreover, Zhang Chen had no footwork; he simply rushed forward using speed, but this speed was also outrageously fast.
It could be said that Zhang Chen was a person whose combat abilities had been unlocked through fighting, but his strength was terrifyingly immense!
If Zhang Chen could learn even a little martial arts, his combat power would undergo a seismic change.
Qing Feng dared not provoke Zhang Chen, so he chose to follow him from a distance, eventually arriving at the entrance of the laboratory.
(To shorten the text and prevent excessive length, I've told Qing Feng's story in a narrative manner. Does it seem dry like this?)