What had baffled Miles most was his missing pet. When he returned to Umbra Forest to take Culga, it was nowhere to be seen. Miles could still feel her existence and knew that she was fine, but she wasn’t there anymore. Since the link bonding them was still there, Miles wasn’t worried about Culga. After all, she was strong and smart.

The next day practical classes finally began. Miles walked into a gym-like giant room and sat on the ground. Not long after other students arrived, the tutor came just a little later hurriedly. “Hello everyone, I am your practical energy tutor, Felix Dusek. You can call me Tutor Dusek.

I will be teaching the theoretical and practical wonders of Energy and will help you unleash your full potential. I have a strict policy in my classes, if you follow them, we will be fine.” Miles looked at the blond hunky man in front of him. He looked like a bodybuilder more than a fighter, but Miles could see that those muscles were carrying explosive power.

“You will realize what my rules are when I do a face like this. So, after I look over them for the first time, don’t repeat the same mistake please.” He said as he made a sour face and ugly expression appeared. Miles doubted he would react like that for any mistake they would make, but he was obviously wrong.

“I am sure none of us would want to see that face again.” A student said and a few chuckled, but Tutor Dusek really made the expression to show his dissatisfaction.

“Now. I will first talk about incredible and ingenious energy.

Humans are born with energy. We all possess limited energy to allow us to live our limited lifespans before dying and ending our mediocre lives. Before Portal World opened, the energy on this plane was limited. With the rapid increase of population, the estimated number of people who have walked on this world was more than 100 billion. That was the most this globe could handle and with the unsupervised child rate, lately, humanity forced our home Earth to the verge of destruction.

Now, energy isn’t special to the globe, it is everywhere in the boundless universe. But beyond the atmosphere, the energy is rampant and destructive. The untamable energy in space cannot be absorbed by the planet, thus disabling it to heal itself. But when Portal World opened, the link between the two allowed Earth to suck the energy like a hungry beast, and healed herself. But that wasn’t all.” This was another common knowledge taught in Unity. Although Energy was a secret kept to the hunters to protect common people from killing themselves, the mysterious bond between Portal World and Earth and how it helped Earth to heal itself was a known fact.

“Although I said that humans possessed a minute amount of energy even before Portal World opened, the amount was only to keep them alive. So, the blabbering of fools claiming that there were people who could use energy before is just a load of bullshit.

There may be some exceptional people, possessing a little, just a little more amount of energy and that is it. Sorry folks, but there were no fictional heroes before.” Dusek said with a shake of his head.

It was a common belief in Unity, and there were fictional novels about those characters. Some claimed that there were people with superpowers or people who could use energy to bring out invincible powers. It did make sense because some of the old novels really matched with the superpowers and use of the energy they had today.

But it only meant, humans had great imaginations. Nothing else.

“Now, let’s return to the subject.

Energy is the source of everything. The universe is built on energy, and everything is essentially made from it. This also means, by use of energy, we are allowed to create things beyond one's imagination.

But I will be teaching the basics for this year, so let’s skip those first.

All of you should know by now that there are four branches of energy. But those branches only represent the peak of the basic form of energy, let me demonstrate.” He said and raised his palm upwards. In his palm, he was holding a regular tree branch.

“This is a fragile tree branch.” He said and slammed it into the wall. The branch broke when it clashed with the wall. Dusek grabbed both pieces and a mysterious green light shone in his hand, when he opened it, the branch was one piece once again.

“Now I will coat the branch with energy, and attack again.” He said as green energy surrounded the branch like a slime. The density of the energy looked low, but when clashed with the wall again—

“BOOM!”

—there was a finger-sized hole in the wall where the branch just collided. Branch was also stuck into the hard-looking wall.

“People categorize this as Body Branch, it is correct, but it doesn’t mean people with other primary branches cannot use it. Everyone possesses energy. Yes, it is not pure and washed by our ancient genes changing its property, yet we all possess energy and can increase the strength of the attacks by coating them with the energy.” Dusek said and covered the branch with a higher density of energy.

“Now that I have increased the energy I input into the branch, it means I have less energy to spend on other parts of my body or attacks, but if I am certain of my success, what is there to hesitate?

It all comes down to one of the most ancient rules about fighting. If the attack or the defense is stronger?” He said and hit the wall with the branch once again. But this time, the branch was destroyed to its smitterness. Dusek looked at the students and asked, “Can anyone tell me why the branch got destroyed? You.”

“Branch wasn’t strong enough to carry all the energy you input. Also, the wall was also strengthened by your energy so the defense was stronger.” The student said. Miles looked at the student with bewilderment because he failed to notice the energy Dusek put into the wall.

“That is correct. Five merits for you.” Dusek said and explained, “Because you saw the green energy around the branch, you assumed that I cannot hide my energy, which is a hard practice most fail. But even when hidden, energy has not vanished and can be seen. It is an easy practice really, you just have to strengthen your eyes, that is all.” Dusek said and suddenly his eyes looked covered with energy.

“I had them there all the time, I was just keeping them invisible. I said it many times already. Energy is the base of everything, and like how we can strengthen our body with it, you can also increase your eyesight, hearing, and other body parts with it.” He said and pulled out another branch from his pocket.

“Now, look again.” He covered the branch with visible energy slime, while the wall with an invisible one. Miles focused on his energy and moved it to his eyes. He suddenly felt that his eyesight had improved a hundred times. He could see the dust in the air like giant meteors falling to the ground. The single hair strand of the girl sitting in front of her used to be invisible to him, but now it looked like a thick log swimming in the air, flapping with the wind like an arm of Cthulhu.

Miles closed his eyes in pain and moderated the energy and eyesight. When he opened them again, it was better. He looked at the wall, and like Dusek and the student said, it was covered with energy too. It was denser than the branch as well. But then a question formed in his mind, and he raised his hand. Dusek was about to hit the branch to the wall but noticed the hand and he stopped with an ugly expression on his face. “What?” He asked with a grimace.

“You said hiding energy is a hard practice, but how can people who are able to use energy before Form-Rank can only hide it but fail to show it then?”