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I once heard it said that there are people destined to do great things, and I always thought it would be amazing to have great achievements, but when you wake up one day and discover that you have become a person with an important destiny... could you really achieve your destiny?

The sky was blue with only a few clouds on the horizon, and a ship could be seen crossing the waves in the sea. It was a ship made of dark, shadowy metal with intense red flashes; the crew members could be seen working in their respective roles as the ship continued to sail south. However, in the middle of the deck, there was a young man who was simply contemplating the horizon, and one could not guess what he was thinking about. Still, through the young man's somewhat lost and worried look, one could sense that he was in need of help.

"Prince Zuko, is something bothering you?" Suddenly, a voice interrupted the young man's thinking.

The young man turned around to see an older man with gray hair and amber eyes coming. It was his uncle Iroh, When Zuko saw him at first, he didn't know what expression to put on his face.

Zuko didn't want to talk to anyone, especially his uncle who was known for his wisdom and knowledge of people. But since he had already spoken, he couldn't just ignore it.

"I'm fine, it's nothing" he replied in a short and concise manner.

"It's good to talk about the things that concern you, Prince Zuko", Uncle Iron said wisely.

"I'm just a little tired, I'll go to my room and let the men stay the course", said Zuko.

After the conversation was over he headed inside the ship, while his uncle just watched him as he walked away while he had a thoughtful look on his face.

_ _ _ _ _ _ _ _ _ _

Once he entered his cabin, the young man let out a long sigh... he was exhausted, it had been a week since he came to this world and he didn't know what to think about it.

 He was happy to be alive, but he also knew that this life was full of responsibilities, Now Prince Zuko and he also knew from his past life that the original Prince Zuko's future was full of dangers and responsibilities. When he watched the original series, he thought Zuko was the best character and he was not the only one who thought so, but he also knew that not just anyone could do it, This war really ended because Zuko became the fire lord, not because Aang defeated the fire lord.

When he thought about his future again, he couldn't help but sigh once more, he had already lost count of his sighs today.

"What am I going to do, I don't think I can rule and I don't know if I could teach firebending to the avatar either."

Zuko couldn't help but think of all the bad things that could happen if he failed on his mission, After all, even though he was in a tv series he couldn't just treat people as fake and play it cool, a country and everyone needed him. 

"Zuko is only 16 now and when he was crowned he wasn't even 18... It really is a difficult situation."

Luckily, he had a trick or a system to be precise, It wasn't a system with many functions or that could make him more powerful quickly, but it could help him solve many problems.

The system had the function of storing and creating knowledge, It wasn't much, but if used correctly it was a great help.

[Creation "breathing method"... 98.3%].

Zuko had used the system to create the training method of another program he had seen in the past, Although this one mainly used swords, it was much better than his current method. It had been in the making for 5 days but he thought it was worth waiting for, It would have been faster if Zuko had more knowledge, but he had nowhere to get it and no time.

By Zuko's calculations, it wouldn't take long for them to reach the southern water tribe and for Aang to wake up and meet Katara and Sokka.

"I hope the spirits will help me... I really hope I can live and get to see this vast world" he said with an expectant look on his face as the system screen turned on.

[Creation "breathing method"... 99.6%]

The wait is always long and stressful.

[Creation of "breathing method"... 100%]. 

[Accepting knowledge] 

[y/n] 

A term finished, he quickly accepted the knowledge, This breathing method was inspired by both the knowledge of the original Zuko and inspired the Demon slayer anime. When a torrent of information was inserted into his head it gave him quite a pain, but that could not prevent his excitement, This method makes one breathe in a way that increases the strength and coordination of the body with the chi and thus increases its power and control. 

It's not a really powerful method or anything, but as long as it improves his strength, it was enough for him. As far as he understood, the chi or energy in his body was of great importance for fire control. An example is Toph Beifong, who is a blind girl and has a small body but is still the best teacher on earth, Only when the discipline reaches a certain level will one be called a real powerful teacher. 

Therefore, her first goal is a method that will help her to increase her coordination and physical condition and then advance to more advanced techniques. Now he just needed to improve his body, mind and spirit, Once the mind and spirit reaches a high level, it is even possible to separate from the body and go to see the spirits. 

"Now just study mental and spiritual exercises, but it will take time to develop them, unless I get some in advance." Zuko was happy and excited now.