Since David Harris was five years old, his father, who practiced medicine, had taught him a set of breathing exercises. At the time, his father didn’t tell him what the method was called, only that it was for strengthening the body, and that it could later be used together with acupuncture to cure illnesses and save lives. Little David Harris didn’t really understand, but muddled through and learned it anyway. It wasn’t until he joined the Wolf Army that he realized this was actually a life-saving treasure.

Every time the warm energy in his body completed a circuit along those meridians, he would feel especially comfortable. His wounds would also heal much faster. If he let the warm energy linger a bit longer at the injured area, even the pain would gradually fade away. There was another rather miraculous effect: his senses became sharper and more acute. This had helped him get through several dangerous situations.

David Harris had actually aspired to study medicine since he was a child, because he liked seeing the grateful faces of patients his father had saved. So his ambition was to become a good doctor, one like his father.

So when his father told him that the breathing method could be used to cure illnesses and save people, he learned it without hesitation, and studied it very diligently. At the same time, little David Harris also picked up quite a bit of his father’s medical skills.

It wasn’t until he arrived at the Wolf Army’s main camp that he realized just how useful these things he’d learned were.

The Wolf Army had just finished a major battle, and several people had already been declared beyond saving by the army doctors, so they were laid aside, covered in blood. David Harris, who had just been escorted to the Wolf Army camp, was still rather innocent at heart. When he saw the wounded, his compassion was stirred, and he couldn’t help but ask the army doctor for medicine, only to be kicked out by the doctor.

A middle-aged uncle with a knife wound in his chest was lying there waiting to die. Seeing David Harris, he smiled and told him not to waste his effort. But David Harris, not knowing his own limits, still wanted to help, and was held back by a few uninjured men.

Perhaps because they had seen too much killing and death, in the Wolf Army, death was a common occurrence. For those gravely wounded, the only path left was to wait for death, and no one found it strange. But seeing this youngster so anxious, a few people still kindly held him back.

Then, he suddenly blurted out, “He can still be saved.” Instantly, a crowd gathered around him.

Maybe that uncle was well-liked, so many people were concerned. Everyone started asking him how he could save him. David Harris thought for a moment, then asked the officer escorting him for his small bundle. The officer hadn’t wanted to give it to him, but when a group of fierce-looking men surrounded him, he realized it was unwise to refuse. He had originally wanted to pocket the prisoner’s belongings, but now that didn’t seem possible. Fortunately, David Harris’s bundle wasn’t very big, just a long, thin package, so he handed it over.

Under everyone’s watchful eyes, David Harris took out a set of ordinary long acupuncture needles he had brought, and without using any medicine, directly closed up the uncle’s chest wound, then inserted a few needles into the acupuncture points around the wound. While inserting the needles, he secretly used a bit of the nameless inner energy he had practiced since childhood. Before long, the uncle actually fell asleep, and his face was no longer so ashen. Anyone with experience could tell that he had come back from the brink of death.

After this incident, the Wolf Army, which usually bullied newcomers, made an exception for David Harris, giving him special treatment. He didn’t have to do the hard chores, and only needed to take care of a few patients each day. Half a month later, when the uncle was able to get out of bed and walk, he requested that David Harris be transferred to their squad. It was only then that David Harris learned the uncle’s name was Charles Brooks, and that he was actually a squad leader in the Wolf Army, commanding a squad of over fifty men. From then on, David Harris became a member of this squad.

Night was falling, and David Harris had just completed three cycles of his nameless inner energy practice.

This inner energy was quite special. Perhaps it was designed for doctors to heal and save people, so it was calm and gentle, flowing smoothly. But over the past five years, it seemed to have changed somewhat. That was because, in these five years, everything David Harris had seen, heard, and thought had nothing of calmness or peace.

Now, all that occupied David Harris’s mind each day were a few things: training desperately, fighting, and figuring out how to survive.

David Harris’s thoughts gradually drifted back to the past.

When he first arrived at the Wolf Army camp, under Charles Brooks’s care, life was fairly manageable, and no one went out of their way to bully him.

The main reason was his near-miraculous medical skills.

There were few army doctors in the Wolf Army to begin with, and they were the worst in the whole camp. Suddenly, a young doctor with excellent skills appeared, so of course everyone wanted to protect him—after all, their own lives might depend on it.

The first major battle happened just half a month after David Harris arrived at the camp. During that half month, Charles Brooks’s wounds had almost completely healed under David Harris’s attentive care, and David Harris had become Charles Brooks’s personal attendant.

David Harris didn’t have a weapon, so Charles Brooks picked out a knife for him and taught him a few simple moves, then took him into battle.

The first time David Harris went into battle, he couldn’t get used to the bloodshed and always seemed a bit off.

Charles Brooks noticed this as well. For a young man, it was normal to react this way the first time on the battlefield—just as he himself had the first time he killed someone.

So Charles Brooks just said a few words to him: “Stay sharp, and live to take your revenge!”

Maybe those words had an effect. The first time David Harris went into battle, he became so fierce that even Charles Brooks was a little afraid of him.