"This is where you will be training." She opened the door of the last room that Kai never went to. It was a completely white room without anything inside.

"What is this room? I never opened this one because you sealed it this whole time." Kai asked.

"It's an isolation room and stress reliever." She shrugged.

"Stress reliever? Don't you feel even more stressed in this place?" Kai tilted his head in confusion. He had heard many things about the white room like how one isolated themselves in a room like this, only to find himself slowly becoming crazy due to boredom.

"I mean, I often buy a few things that I can break and destroy everything here. I am sure sometimes you have a day where you feel like you want to destroy something just to release the feeling in your heart. This is the room's purpose." She shrugged. "What? Do you think that your teacher never got any stress?"

"Nope. I often felt it, and I always asked the girls to stay away from me. Right, it's "Me Time." Fortunately, they understood me and didn't say anything." He smiled as if recalling those scenes. "Of course, when they needed time like that, I would wait for them."

"Well…" She stretched her hands. "This is the room. You can train here until you are satisfied. I will be monitoring you from the camera to make sure nothing happens."

"Alright." Kai nodded with a solemn expression. He would be fighting with the blood power, so he understood that something might go wrong.

"And what about your food? I can order them online and place them in front of the door. Or do you want me to bring it inside?" She asked.

"Please put it in front of the door. I feel I won't be able to keep my head calm if I eat together like usual." Kai felt a bit guilty since Ria always had a smile on her face when they were together. Even though it didn't seem that big, it certainly felt warm.

"Don't worry about me." As if she understood Kai's feelings, she patted his head. "Just complete your training as fast as possible. After that, we shall fight. I wonder what kind of power you will have after this."

"Yeah. That's a deal. You should prepare yourself to lose." Kai smirked, taunting her.

"Hehe, kiddo. I have all your training footage. I can learn your new skill and make a counter for it. Don't think that your teacher is a pushover." She snorted.

"Haha…We will see that after this. And I think we can use the last week to learn about tactics."

"Sure. We have enough time for that unless this training takes too much time." She nodded. "I will be teaching you about normal tactics, guerilla warfare, defensive battles, and natural fortress."

"I am looking forward to it. Those tactics will be useful for me in the future, especially since there is a chance that a war will break out."

"A war? Against the protectors…No, what should I call them now?"

"I am not sure. It's not like the others know about this, so we shouldn't change the terms for now and just call them protectors." Kai nodded. "Besides, it's very unscientific to meet the soul of a two hundred thousand years old lion inside my body…"

"True enough. However, I believe because it has superior DNA and powerful strength due to the Magic Particles, its consciousness can stay inside the blood. Well, we need to have you reach his level to prove my theory." She smiled. "Are you ready to take the first step towards becoming a protector?"

"Yes, I do."

"Then, war is indeed necessary. I mean, it was not our fault since they attacked us first."

"I don't know for sure. It was true that for me, they attacked me first. Even though it was unintentional, it became something big. As for what happened in the past, I didn't know since I had yet to research it." Kai shrugged.

"They indeed attacked us first, but we didn't know their reason." She confirmed his doubt.

"In that case, the protectors are indeed suspicious. Maybe they have a hidden agenda?" Kai glanced at her.

She glanced back while saying, "And it's related to you."

"The human once had an altar, right?"

"You heard it yourself that the altar was missing…"

"Don't tell me…" Kai paused as both of them shuddered as if they just thought something terrifying.

"They don't happen to target you because they want to sacrifice you, right?"

"But they needed to train me first to become a full-fledged protector if they want to sacrifice me and call another calamity…I mean, I don't have enough power to do something like that yet."

"Indeed. Well, they must have their reasons. If they want a war, we will give them. If they want you, I will make war. The only problem is whether they will release the information about you becoming a protector. I mean, if they say you need to sacrifice yourself to a great cause, the masses will start thinking about that."

"I don't want to die, so I won't sacrifice myself. Whether the people see me as a selfish person, I don't care. After all, they are more selfish than me." Kai shrugged, not caring about it.

"True enough. Anyway, it's time for you to go." Ria smiled.

After having enough conversation with Ria, he finally went inside the room. There was only white when the door was closed.

He looked at the camera on the top corner and nodded once before sitting down on the floor.

Closing his eyes, he tried to wake up the blood only to find himself not knowing how to do it.

"Wait…He didn't tell me anything about this." Kai scratched the back of his head. "What should I do? Should I use my sound magic to do this or use my magic power?"

He thought for a moment and found a solution. "That's right. I can use my magic power to stimulate my blood."

After getting the solution, he closed his eyes, focusing on his inner body. The magic power that flew like blood inside his body slowly flowed to his hands, feet, stomach, and even brain.

As soon as he completed the first cycle, he felt something was calling him. In an instant, he realized this was the method to stimulate the blood.

He started doing the second cycle and got the feedback again. Feeling it wasn't enough, he kept doing it.

The third time…The fourth time…The fifth time…When he finished the twentieth cycle, his blood felt boiling. It sent a shiver through his body before his mind felt a jolt as if a

The blood slowly but surely tried to take over his body from sucking his blood.

Not wanting to lose, Kai released his magic power to suppress the blood like how Zugg told him. Of course, he didn't trust him completely. There was a chance that Zugg only suggested this because he could take over his body.

He had enough leeway to do something like this, especially with his teacher standing by in another room.

With the peace on his mind, he suppressed the blood. Just like the explanation, the blood wanted to reign supreme, so it released its dominance.

The clash between his power and the blood power immediately induced pain all over his body as he couldn't help but scream in that instant.

"Argh!" Kai gripped his pants and clenched his teeth, trying to endure this constant pain. He realized that he lost a portion of his control over this pain, so the only way to fight this was to get used to this kind of pain.

'Whatever, even if I become accustomed to pain, it doesn't mean I am a Masochist unless I love the pain itself and act as if it's a pleasure.' He thought and tried to concentrate on this pain.

"I will win this battle." Kai smiled and muttered with confidence even though he had trouble using that.

Sweat started covering his body. His clothes were wet, so he decided to remove them, only enduring the pain with his pants alone.

To Ria's surprise, he kept going on for a whole day without eating. She wondered what to do when it reached this point. It was said that humans could last a week without eating but could only last three days without water. Even though it became relatively longer due to magic, it wouldn't last four to five days.

If this continued for an unknown period of time, Kai's life would be in danger.

"I need to prepare for the worse." Ria thought and immediately ordered nutritious food while preparing for infusion. If it took longer than three days, she would storm in no matter what happened and inserted the infuse tube, so he could stay alive until he finished this.

Meanwhile, Kai kept fighting against the blood despite his stomach becoming a real "lion" that continuously asked him for food. His lips started drying too, but it didn't mean he could lower his guard.

The third day passed, and Ria couldn't endure anymore. She went inside the room, even if it meant disturbing his concentration.

However, it seemed Kai managed to deal with it as he looked at her and said in a low voice. "Wa…ter…"

She immediately picked up a water bottle and let him drink to his heart content before replacing it with nutritious fluid for his protein and such."

"Thanks…" Kai's face became better after getting the help.

"Endure it. I will be here with you."

Kai nodded and maintained his focus while Ria started bringing a few items to check his body condition to make sure there was no long-lasting effect due to this.