A few days came by and the Internships are finally over.

Luffy and the gang were back at their temp apartment discussing how to teach the kids about haki over the camping trip.

"So we teach them like we did for the teachers?" Robin asked.

"Yeah, but we need to decide who will tag along on the camping trip and who stays here since the teachers still need some teaching on Haki." Nami said as she took out straws. "Short straws stay here, long straws go on the trip." She said although she knew Luffy and Yukiko will go no matter what she said.

Those with their results:

Stay: Usopp, Sanji, Franky, Brook, Alina, and Nami.

Camp: Zoro, Chopper, Robin, Jinbei, Bonney, and Ace.

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"You have a good time and please don't seriously harm the kids." Alina reminded Ace as she got his suitcase packed.

"Got it." Ace said as he kissed his wife.

Soon the selected members of the crew were off to the Hero Camping Trip.

They took a luxury bus to reach their destination and were waiting for the students.

Although the students did get lost on the way.......

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The next day once Class 1A rested up, they all met at the training field alongside Class 1B.

Before them was Luffy, Yukiko, Ace, Zoro, Robin, Jinbei, and Bonney.

"Luffy-san, what are you and the others doing here?" Izuku asked.

"To answer that..." Aizawa spoke up..."We asked members of Luffy's gang to come and mentor you all."

"Eh?"

"EEEEEEEEHHHHHHHH?!?!?!?!?!" The students all yelled in fear, surprise and shock. Mostly fear, as there had been a rumor going around that Joyboy (Luffy) had challenged All Might to a fight, and the former won!

"Nooooooo!" Mina wailed in despair.

"We were asked by Nedzu-chan personally, so we obliged! Now, we will be training you kids how to use Haki!" Yukiko smiled making them confused.

"Haki?" Jiro asked.

"Is that a quirk?" Idia asked a little skeptical.

"You may say that, but at the same time its not. It's a special ability only a couple of people can grasp but it comes from your own willpower. The stronger your will, the stronger the Haki." Ace said.

"Not everyone can use it as they are either not aware of it or they don't have a strong enough will. But it can give one a lot of advantages." Robin explained.

"There are three kinds of haki. In our world, Current understandings of Haki define three distinct types, each tied to a different ability: sensing others' spiritual energy to anticipate their movements, producing a protective coating of energy from one's own body, and—for a certain group of "chosen ones"—overwhelming the willpower of others." Jinbei explained surprising them.

"People who do usually awaken it through proper instruction and intense training. Haki is apparently quite difficult to master, and Zoro, Luffy, Sanji, Pachi and I had to crunch in two years just to know the basics." Yukiko explained.

"Really?" Momo asked.

"Although there are exceptions. In very rare instances, a person can awaken their Haki on their own due to an experience of extreme stress or shock. And only a handful of people are actually born with awakened Haki, and are able to use it with no known training." Ace said.

"A person can also make their Haki become stronger, especially when they push themselves and their Haki to the limit and beyond in battles against far stronger opponents." Bonney adds.

"Not only that, Haki is the true defining factor that determines whether or not someone can conquer the sea, because only Haki transcends all, unlike Devil Fruit powers or even Quirks, no matter how powerful they may be. One example is the late pirate king Roger. He conquered the Grand Line using his Haki, which the previous Yonko failed to do. His Haki was that strong." Yukiko adds.

The students were stupified by this. So, haki is more powerful than any quirk?

Bakugou, did not say anything yet, but he was listening with interest.

"Um, you mentioned three kinds of Haki. Just what are they?" Sero asked.

"The First is called Kenbunshoku Haki, or Observation Haki, which gives the user a sixth sense of the world around them. It allows a person to sense the presence, strength, and emotions of other people, even if they are out of sight or far away. It also grants limited precognitive abilities, allowing the user to sense their opponents' intentions and predict their actions and attacks before they happen. Our sniper, Usopp possesses this kind of Haki, which helps his skills as a sniper. And he's a master at it. He also got it from his father, who's also a pro at this haki." Yukiko said.

"An advanced level of Kenbunshoku allows the user to actually foresee a short period into the future. I actually unlocked this form of Kenbunshoku after fighting Katakuri who could also see slightly ahead into the future. And he was not an easy opponent either. In fact he was three times my height." Luffy explained.

'T-three times?! What kind of world do they live in?!' Izuku thought in shock.

"Unlike the other types of Haki, it has hardly any visible indication when being used, except for when the person has bright red pupils to warn of a coming attack, or even hidden opponents. This kind of haki can be best used by snipers, and is done best when in a calm state.

Rayleigh also told me that to fully master this ability, the user would be able to see others, even if they are concealed from view or too far to see." Luffy adds.

"This type of Haki allows the user to see another person through their aura, be it behind buildings, strategically hidden, or even camouflaged. But that's just the basic. Others include emotion sensing, strength sensing, but it can falter when losing concentration. Among you, I think it would be perfect for Uraraka, Mezo, Tokoyami, and Reiko." Jinbei adds.

This surprised the students in question, and considered the possibilities. 

'So I could use it to see enemies, even if they are not in my range?' Mezo thought.

'I can use this to find people trapped in rubble!' Uraraka thought in joy.

'Could I use it in the dark?' Tokoyami wondered.

Reiko was silent, but she thought it can give her an edge too.

"Yeah but gaining it isnt easy. A sign to gain it is to dodge attacks 100 times in a row without stopping." Yukiko smiled to their shock.

"Anyway, the second type is Busoshoku Haki or Armament Haki. It allows the user to use their own spiritual energy to create, in essence, an invisible piece of armor around themself, providing incredible offensive and defensive capabilities." Robin said.

"One advantage is that it can be used against other Devil Fruit users back home, and we also learned, it can be useful against quirks that would otherwise kill you. Even elemental ones." Zoro said.

Then the Class 1A students remembered at the USJ Incident, when Luffy, Yukiko, and Pachi fought against the mist villain and the decay villain, they used a strange power that actually worked against them. Was that Armament?

"With hardening as the basic form, the affected body part becomes stronger in terms of both offense and defense. Hardening increases one's attack power by a considerable amount, allowing the user's blows to become tremendously destructive and dangerous. Defensively, hardening serves as an armor which can safeguard the user from a great amount of attacks, particularly ones which are not clad in Haki themselves. But extensive use can lead to a depletion until you rest. And it's not just for people." Jinbei said.

"Right. Armament users can also extend their ability to objects, only for a certain amount of time, depending how strong it is. Imbued weapons gain a new degree of offensive power, with one example imbuing arrows to blast through solid stone. Defensively, imbuing Haki into a weapon prevents it from being damaged as easily and increases its lifespan. Zoro has a great hold of this ability and he can extend it to all of his swords at once." Ace adds.

Zoro then stands up, as his swords gained a haki sheen to their surprise.

And before anyone could blink, he sliced a huge boulder clean in two.

"Oh my!" Ibara yelled.

"Not even the other sword wielding heros could accomplish!" Tetsutetsu yelled.

They were even more shocked to learn that this haki can also enhance one's abilities.

Katsuki grinned like a maniac as he thought of having Armament. 'If I gained Armament, villains like that warp gate and crusty guy wouldn't stand a chance!' he thought. Those who thought of having Armament thought the same, that they would be stronger heroes. It would benefit those like Izuku, Shoto, Kirishima, Jiro, Kaminari, Rin, Kendo, Kamakiri, and Pony.

"Another level to this Haki is Ryou. So far, Luffy is one of the few people to unlock it. A step above the technique of emitting Busoshoku is having it flow into a targets body and destroy it from the inside out, which can be done by touching, grabbing, or even emitting Haki toward the object. This technique is also useful against objects which cannot be broken easily." Chopper adds.

Luffy then went to a tree as he focused his Armament to demonstrate. And without barely touching it, the tree tore apart from the inside out!

"Imagine what that can do to a human..." Mineta said in fear.

"It would NOT be a pretty sight..." Kaminari gulped.

But it only made Katsuki grin wider.

"Well, you saw Observation and Armament...............

However, unlike these.......

Only one in a million people can unlock the rarest form of Haki..............

Haoshoku Haki, or Conqueror's Haki!" Yukiko said.

"Conqueror's? What does that do?" Izuku asked curious.

Luffy and Yukiko smiled.

And then the Class 1A and 1B students felt like a presure fell upon them, as if something terrifying entered their minds and souls, attempting to dominate thier wills!

Then it stopped and they fell to their knees feeling shaken.

"Sorry about that, but we only used a little bit of it." Luffy smiled.

"If we used it fully you would have passed out." Yukiko said.

"P-passed out?" Kendo asked.

"This haki allows the user to exert their own willpower over others. Unlike the other two types of Haki, this type cannot be awakened through training and only one in a million people are born with this ability. Plus one has to control this haki or they would knock out bystanders along with the enemy. And unlike the other two, Conqueror's is achieved through lineage. Luffy for example can use it thanks to his parents and grandparents who all possess Conqueror's Haki. It's also said that those who possess this haki have the qualities of a king, and are called Supreme Rulers." Jinbei explained.

"Qualities..........of a king?!"

"Luffy and Yukiko's Haoshoko is proficient enough to tame monsters, as well as knock out a selected group of individuals without affecting any bystanders. Although there have been times when one unlocks it at a young age. I was able to awaken mine when I was only ten." Ace explained. "The basic is domination of will making animals tame, and incapiciation involves individuals passing out. If used with a sufficient degree of power, Haoshoku Haki is capable of damaging inanimate objects and structures in the user's vicinity. Additionally, Haoshoku clashes between particularly powerful individuals have even resulted in a massive rift in the sky above them, known as "splitting the heavens"." he finishes.

This.............was a lot to take in.

Haki was very versitile yet very dangerous.........

"Alright, now that we got that situated. We'll start with the basics for gaining Observation and Armament. Half of you have to attack, the others either dodge or take the hits." Yukiko said as they got students situated.

Although the training was easier said than done, the students showed they were that determined.

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Yeah, the students are training in haki now!

plz comment!