As the training began, the Guild Master explained the importance of opening every acupuncture point and mana gate in the body to maximize the potential of Soul Charge.

"You may not be able to open every single point and gate right now, but even with a few opened, you can still increase your power drastically," he said to Kosu.

Kosu nodded, determined to master this skill despite his limitations.

Tetsuo then demonstrated the proper breathing technique and visualization exercises to help Kosu control the flow of magic particles into his body through the open points and gates. Kosu followed his movements and tried to mimic them, focusing on the sensation of the energy entering his body.

"Good, good," Tetsuo praised him. "You have a natural talent for this, Kosu. I can see that you are able to absorb and release the magic particles with ease."

As Kosu continued to practice, he felt his power growing with each passing moment. The sensation was exhilarating and he wanted more. Tetsuo saw the fire in Kosu's eyes and knew that he was ready to move on to the next step.

"Now that you have a grasp of the basic technique, let's move on to the next phase," Tetsuo said. "We'll work on channeling your power into your physical strikes."

Kosu's eyes widened with excitement. He had been waiting for this moment ever since he learned about Soul Charge. With Tetsuo's guidance, he was confident that he could become a formidable warrior.

Tetsuo looked at Kosu and said, "The best way to learn how to use Soul Charge is through actual combat. Are you ready to put your knowledge to the test?"

Kosu hesitated for a moment. He knew that Tetsuo was a powerful adventurer, and he still had a long way to go before he could fully control his Soul Charge. But he also knew that he needed to push himself if he wanted to improve.

"Alright," Kosu said, steeling himself. "I'm ready."

Tetsuo nodded and stepped forward, holding his left arm behind his back and standing on his right leg. "I'll give you a handicap," he said. "I'll only use one hand and one leg in this training. That should even the odds a bit."

Kosu nodded, appreciating the gesture. He knew that Tetsuo could have easily defeated him without any handicaps. The two of them squared off, and Tetsuo made the first move, throwing a punch with his free hand.

Kosu quickly dodged to the side and tried to counter with a punch of his own, but Tetsuo easily blocked it with his leg. Kosu tried again, this time with a kick, but Tetsuo swept his leg out from under him, causing Kosu to stumble.

Tetsuo was quick to capitalize on the opening, unleashing a flurry of strikes that Kosu struggled to defend against. Despite his best efforts, Kosu couldn't keep up with Tetsuo's speed and precision. He knew that he needed to do something drastic if he was going to turn the tide.

Gathering his energy, Kosu focused on his acupuncture points and mana gates, trying to channel his Soul Charge into his body. He felt a surge of power as he opened a few more points, and suddenly his movements became faster and more fluid.

Tetsuo was caught off guard by Kosu's sudden increase in speed, and Kosu was able to land a few solid hits. Though he panting heavily as Soul Charge had drawn a lot of his stamina.

Tetsuo was impressed by Kosu's progress, but he knew that he still had a lot to learn.

"Good job," Tetsuo said, smiling. "But don't get too cocky. You still have a long way to go."

Kosu nodded, feeling a sense of pride and accomplishment. He knew that he had a lot of work to do, but he was excited to continue his training and see where it would take him.

The fight continued, and Tetsuo began to use his Soul Charge. The mana particles in the air began to gather towards him, flowing through his mana gate and into his body. The Guild Master's movements became even more fluid and precise as he incorporated the power of Soul Charge into his attacks.

Kosu was amazed by the sight before him. He had seen Tetsuo fight before, but this was on another level entirely. His movements were almost too fast to follow, and his attacks were incredibly powerful.

Despite the handicap, Tetsuo still managed to land several blows on Kosu. Each one felt like a sledgehammer hitting him, and he stumbled backwards under the force.

Tetsuo stopped the fight and walked towards Kosu, placing a hand on his shoulder. "You're doing well, Kosu. But you need to open more acupuncture points and mana gates in your body if you want to keep up with me."

Kosu nodded, panting heavily. He realized that he still had a long way to go before he could fully master his Soul Charge.

Tetsuo continued, "Remember, it's not just about power. It's about control. You need to be able to control the flow of mana through your body, or else you'll end up burning yourself out."

Kosu listened intently, taking in every word that Tetsuo said. He knew that he had to be careful with the power he possessed, or else he might end up harming himself.

The Guild Master gestured towards the training area. "Let's continue. You need to get used to fighting with Soul Charge. It's not something that can be learned overnight."

Kosu nodded and readied himself, determined to improve and learn as much as he could from Tetsuo. He may have been at a disadvantage, but he wasn't going to let that stop him. He was going to master his Soul Charge, no matter what.

They continued to train for hours, working on different techniques and strategies to maximize the power of Soul Charge. Kosu's progress was impressive, and Tetsuo could see that he was pushing himself to the limit.

"Good work today, Kosu," Tetsuo said as they finished their training. "Rest up, we'll continue tomorrow."

Kosu nodded, feeling exhausted but satisfied with his progress. As he walked away, he knew that he was one step closer to mastering Soul Charge and saving his friend Jinpei.