Year 480.

Today, Serene Valley had a visitor who had finally defeated Rayfan. He was a tall and muscular fellow with a roguish appearance.

This fellow was named Okami and was the disciple of Mutaito alongside Roshi and Shen. They were from different generations. Okami was 10 years younger than them. He was 19 and had a power level of 110.

"Greetings, Grandmaster Rayhan" As Okami said as he cupped his hands and bowed.

"So, you are Mutaito's disciple?" He asked.

"Yes, grandmaster," Okami replied.

"Hmm. You are good. Why would Mutaito let go of such a good seedling? Should not he make you his successor or something like that?" Rayhan asked in a joking manner.

"Grandmaster. Senior brother Shen, Senior brother Roshi and Senior brother Zabra are much better than me. Therefore, they will probably succeed the Mutaito grandmaster. With much focus being directed toward them, I thought taking a test at the serene valley was a better option. I have asked grandmaster Mutaito's permission for this." He explained.

"Oh. You seem to have a good brain in your head, Kiddo. You made the right choice. Now even if you want to leave, I won't let you leave without making you a grandmaster. Hahaha." Rayhan said with a smirk and continued as he passed on some weighted clothes, "Wear these every day from now on. Spar with Rayfan after wearing this daily. When you have completely adjusted to the weight. I will give you some tips."

Okami silently wore the clothes and his expression became stiff because Rayhan had started his training from hell mode.

2 months later, Okami finally adapted to the weight when Rayhan increased the weight by a huge margin again.

This cycle continued for a year and 6 months. Since Rayhan had put Okami through hell. Naturally, Okami grew in power like a comet. His power level had reached 180.

One day Rayhan called Okami and asked, "I have not taught you any martial art techniques yet. Do you know why?"

"I am ignorant, Grandmaster. Please forgive my ignorance" He replied curtly.

"Hehe, It's simple. It's because power is more important than martial art techniques when you reach a higher realm. Martial art techniques were created for the weak people to defend themselves from stronger predators. Demons don't have a comprehensive system of martial arts as far as I know. The last time, I fought them I didn't see any of them using Martial art techniques. They were fighting using their experience and instinct. Demons are superior life forms compared to humans. My ancestor created the 'demon-killing fist' to battle against demons. Why? Because they were weaker than demons. If they were stronger, they would not have needed to create a martial art technique. They could have simply punched them to death." He explained.

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"I understand, Grandmaster," He said with an enlightened expression on his face.

"That doesn't mean martial arts are useless. Martial arts can help weaker people defeat slightly stronger people. It can save lives. It can also help you train your ki control. There are various benefits of learning martial art techniques. However, If your foe is significantly stronger than you then martial art techniques might fail you. So, I want you to raise your strength first. Do you know how much your strength has increased?" Rayhan explained and then questioned.

"I am unaware, grandmaster." He replied.

"It has increased by 63%. If you can increase your strength by another 27%. You can be considered a grandmaster. So, persist in the training plan I gave you. You will become a qualified grandmaster before the age of 25." Rayhan guaranteed.

Okami took a long breath when he heard the last sentence. Even his own master, master Mutaito had been called a grandmaster at the age of 35. Okami didn't know what to feel at this moment. It was too much for his brain to take. So, he was confused. He thanked Rayhan once again and left.

Rayhan had finally succeeded in perfecting the tri-beam. It was an incredible move that could be used to destroy the much stronger opponent. His next goal was to create special beam cannon.

During this time, Many others had come to challenge Rayfan and none of them had succeeded. Rayhan had restricted his son's power level to 105 as his combat experience had gone up a notch. It made the test relatively fairer. However, none had yet to fulfill his criterion.

Soon another year passed and Rayhan had mastered the special beam cannon. Okami's power level had reached 220. By next year, Okami would be able to claim himself as grandmaster.

Next, He tried to create the spirit sword technique which was the most difficult technique for him so far. He understood the principle but he was lacking something.

2 years later, When Okami was 24, his battle power had reached the staggering level of 255.

Since Rayhan had fulfilled his promise. Naturally, it was time for Okami's departure.

"Before you go. Take the heaviest weighted clothes you can handle. This is my last instruction. Get adjusted to the clothes you take. After that climb Karin's tower wearing those clothes. Here is the letter. Give this to Karin. He will train you to control ki for a while. After the training, I hope your name resounds throughout the world. Do good deeds, and don't harm others if not necessary. That is all. Leave now." Rayhan said and sent Okami away with a final instruction.

Rayhan had a vague premonition that this kid was going to become someone.

Okami was extremely grateful to Rayhan and the serene valley. Although, Rayhan had been extremely strict with him. But he knew that it was for his good. Okami not only was grateful to him but also appreciated Rayhan's character. He had been told to do good and don't harm others by Rayhan. That resonated with his philosophy. He was the type of person who would not harm anyone if it was not necessary.

'Guess I have to get comfortable with this weight as soon as possible then climb Karin's tower.' He thought and hurried towards his destination.

He traveled towards Karin's tower as he was adjusting to his training weight.

2 months later, he had somewhat adjusted to the weighted clothing.

He tried to climb the Karin tower but he was only able to climb for 3 hours he came down.

Next week he was able to climb for 4 hours.

1 month later, He climbed for 7 hours.

2 months later, He climbed for 11 hours.

Another three months passed, and only then was he able to reach the top.

After he reached the top, he saw a white cat standing on two legs with a staff in hand. Okami immediately recognized this great personage as Sage Karin.

He stood up from the ground and deeply bowed at Karin and said "Okami greets Sage Karin. Grandmaster Rayhan has sent a letter for you."

He promptly passed the letter to Karin.

Karin opened the letter and read it.

A few simple lines were written:

Big Bro Karin! I hope you have been well. I have sent this guy to produce some ki nourished water. Irrigate the Senju beans well. Take care. I will see you soon.