Small upgrade system

His sister tells him she will come home tomorrow. She will go to the North city day after tomorrow because of this she will come home tomorrow.

"I think they are going to the North city's C-grade dungeon." Sam thought while walking. North city not only has a ghost-dungeon but also has a C-grade dungeon.

Sam comes to the training field. He first started doing all the basic exercises. When he will finish his basic training, he will start his real training.

His basic training is all about the Saitama training routine. In this world, where spiritual energy means everything and you gain straight from absorbing crystals, this type of workout didn't increase your strength that much. But Sam still practices them. This type of workout helps you to maintain your body from being rusty, and this type of workout makes your mind fresh.

(A/N: Guys, let's exercise. Let's become Saitama, but don't become bald. L.O.L.)

After finishing his basic exercise, he practices his sword techniques. He becomes 75% familiar with his fast-cut technique. Just a little more, then he can upgrade his fast-cut technique. But he also needs to increase his strength and physique because using a higher grade technique will put pressure on his body.

His Tri sword technique's familiarity reaches 55%. He is also aiming to upgrade this technique. Thi technique was low grade compared to the Fast-cut technique, he just needs to practice seriously for 1 week to become completely familiar with the technique.

Previous some days he didn't practice this technique because he only focused on his Fast-cut technique. In his Energy mode, he only can use his Fast-cut technique with the spiritual energy-coated sword. Because his Fast-cut technique is one of his most destructive and most favorite techniques, so he only uses that technique.

Now he playing to use the Tri technique in his Energy mode. So he started practicing this technique.

He was practicing both his sword techniques. He was using his shadow-practice method to practice his sword technique. In this method, he visualized the enemy and try to kill that enemy. He also visualized their attack and defense pattern. It is like having a ghost enemy which you can only see and you have to defeat him.

Today is his first day to practice this method. Previously, he only has an idea but didn't really practice this method. He thought about this method because in his previous life he read many comics and novels or even watch anime, where fighters practiced like this visualizing their opponent. He also wants to try this method and today he finally practicing using this method.

(A/N: Hey guys, I am not good at naming things like this. So, if you have any suitable names for this method in your mind, tell me.)

At first, he can't even visualize any enemy, but after some serious focus on visualizing the enemy, he visualizes a goblin soldier. He needs to keep the focus on visualizing the enemy, then he will visualize the enemy.

It takes 2 hours to just successfully visualize an enemy. The reason is that he didn't know how to do it. Sam tried various methods and finally; he found the right method to visualize the enemy. Sam can't just visualize any enemy and it also costs his mental energy to maintain the virtualized enemy.

To visualize the virtual enemy, he needs to follow some rules.

First, he only can visualize the enemy he fought before. He wasn't able to visualize any enemy that he didn't fight. That doesn't mean it will be impossible, but he will try that later.

Second, he needs to use mental his mental energy to visualize. He also has an idea to use his spiritual energy In this method to make it even better, that is for the future.

Third, he needs to maintain his focus. If he lost his focus, his virtual enemy also disappeared. Like his Energy mode, where he always needs to maintain his focus in both energy coating and his technique, this Shadow-practice method also is the same where he needs to maintain his focus.

Right now, he could only find out these three rules. He found a good thing about this practice method. Like his Energy mode, in this practice method, he needs to use his mental energy, but he only needed a small amount of his mental energy. Suppose Sam uses 70% to 80% mental energy in his Energy mode but In Shadow-practice he needs to use only 20% to 30% of his mental energy.

He needs to use the mental energy based on the visualized enemy's strength. Suppose when he was thinking about an E-early grade monster, he need to use 30% mental energy but when he was thinking about an F-early grade monster, he only need to use 20% or even 10% of his mental energy.

He was now fighting a visualized goblin captain. Now he can only visualize one monster at a time. He now only using his 20% to 25% mental energy. Even though he needs to take some rest from time to time to recover his mental energy, he was using this method continues to practice his sword techniques.

He didn't know if he can use his Shadow-practice method to practice archery techniques. He can find this out later.

Right now, he only focuses on his sword technique. He wants to upgrade at least one sword technique in one week.

He also wants to see if he can use this method while he will use his archery technique. Archery and swordsman are two different professions and their practice method is different. So he wants to see would he needs more mental energy when using archery, but that is for later.

He was feeling quite excited because he feels like he was facing an actual monster. If he can practice like this, then he will not need one week to become familiar with his Tri sword technique. He will need more time in case of his Fast-cut technique.

Now he is using 5% gravity, but he felt that in one or two days he will need to increase the gravity. His body is becoming comfortable using 5% gravity.