"The reason you 't learn chakra flow is that a normal sword resists the flow of chakra. It's a minor nuisah other elemental chakra, which be overe by flowing more chakra into the sword. However, with fire chakra, the resistance causes the sword to start melting due to the excess heat produced by the fire chakra."

  "So, Sensei, you don't use chakra flow in your kenjutsu?" Kaida asked.

  "No, I do use chakra flow in my fights, but as I said, normal swords 't handle fire chakra. That's why I use a special sword," Yukihiro expiaking out his sword.

  "This sword is made of chakra metal. It's more expehan gold due to its special properties—it doesn't restrict chakra flow at all; in fact, it aids it. I had to plete many life-threatening missions to afford this, but it was worth it," Yukihiro said, a hint of pride in his voice.

  "But Sensei, what is so different about chakra metal pared to normal metal?" Kaida asked, genuinely curious.

  "Swords made of chakra metal tain chakra veins, which help the chakra flow through the sword—something normal metal swords ck."

  Hearing this, Kaida remembered something. He could easily transform into another person or animal with chakra veins, so if he could transform into animals with chakra veins, why not transform into a chakra metal sword with chakra veins?

  "Sensei, you please give me that sword?" Kaida asked.

  Seeing no problem with the request, Yukihiro handed his sword to Kaida. Kaida took the sword and passed his chakra through it. It was just normal chakra, but he was surprised by how easily it flowed through the sword.

  Then, he made a shadow e, which transformed into a sword. Yukihiro saw this and smiled—Kaida wasn't the first to try this. Many other ninjas had tried and failed. The Transformation Jutsu may form a sword, but it 't replicate the chakra veins. Yukihiro decided to expin this to Kaida.

  "Kaida, it's not possible to replicate a chakra metal sword with the Transformation Jutsu. Many have tried before…" But just as he was in the middle of expining, Kaida picked up the transformed sword. When he passed his chakra through it, a smile formed on his face. He hahe sword to Yukihiro.

  Not uanding why Kaida was doing this, Yukihiro took the sword and asked, "Why are you givihis sword?" Displeasure arent in his voice, as Kaida had not listeo his expnation.

  "Sensei, please try to flow your chakra through the sword," Kaida said, the smile never fading from his face.

  Puzzled by Kaida's as, Yukihiro still decided to flow his chakra into the sword.

  "Huh?"

  He couldn't form the words. He even disrupted his chakra to firm he wasn't in a genjutsu, but the result was just as unbelievable.

  A chakra metal sword costs millions of Ryu—the amount a ninja earns after pleting many S-rank missions, each time risking their life. Evehe Hokage himself has to ission a sword to get one. And Kaida just made a sword in one sed. How could he believe this?

  Yukihiro looked at Kaida and then back at the sword in his hand. He passed his chakra through it again, and the result was the same. This time, he passed fire chakra into the sword, and once again, it behaved like a sword made of chakra metal.

  He tio flow his fire chakra into the sword, even increasing the input to see if it would be destroyed, but the sword held up—no matter how much fire chakra he eled into it, it didn't melt, just like any chakra metal sword.

  He then sliced the same boulder again and again, and the sword held up. Yukihiro returhe sword to Kaida and looked up at the sky.

  "Fuck you," he muttered, cursing his luck. He had to suffer so much to get his sword, but the boy in front of him could get one practically for free. And not just one—Kaida was a walking factory of chakra metal ons, able to make them anytime he wao say Yukihiro wasn't jealous would be a lie.

  He looked at Kaida and said, "We are going to meet Lord Hokage."

  Kaida, seeing Yukihiro's rea, said nothing.

  After 30 miwo swords were pced on Hiruzen's table.

  " a least expin to me what happened?" Hiruzen asked. Seeing Yukihiro's sullen face was new, even for him.

  "Please flow your chakra into both of these swords, Lord Hokage."

  Hiruzen did as asked, but he didn't find anything wrong with the swords, except that one was leaking a little chakra—unusual, but nothing too big to disturb him like this. But then he remembered that Yukihiro only had a single chakra metal sword.

  "Yukihiro, where did you get this sed chakra metal sword?"

  With a firm expression, Yukihiro replied, "Hokage, I would like to discuss this in private."

  Hiruzen nodded and waved his hand, and suddenly four ANBU ninjas left his office, closing the door behind them. Hiruzen activated a silence seal so that their discussion couldn't be overheard by anyone else.

  Yukihiro then looked at Kaida and said, "Kaida, disperse your e."

  *Poof*

  Immediately, one of the swords on Hiruzen's table disappeared. Hiruzen wasn't an idiot—far from it. He quickly uood what had happened. He had been surprised when he first saw Kaida transform into animals with well-defined chakra veins. But this was different. Even though these swords would disperse in 10-24 hours, depending on how much chakra a e was made of, and couldn't be given to a ninja for a mission that might take weeks to plete, during a time of war, Kaida alone could ge the dire of the flict with this ability.

  "This will be a secret, and you are not allowed to share it with anyone else," Hiruzen said in a serious tone.

  Kaida didn't uand at first why they were making such a big deal out of it. Seeing his fusion, Hiruzen chuckled and said, "Kaida, our vilge has 3,000 ninjas right now, and 1,000 of them use ons in their fights. How many do you think have a on made of chakra metal?"

  Kaida thought for a moment, sidering how expensive chakra metal was. "Maybe around 100 or so?"

  "No, only 12 ninjas have ons made of chakra metal. Now tell me, how many ons you make that work the same as chakra metal ons?"

  Kaida paused for a moment, uanding the implications of Hiruzen's words. Then he said, "24."

  "Right. You alone increase Konoha's strength many times over in a war. Now, what do you think other vilges would do if they heard about this?"

  Kaida quickly uood why Hiruzen had said to keep it a secret. "I uand, Grandpa. I will keep it a secret."

  Hiruzen nodded and ordered them to return to their training.

  Hiruzen had initially sidered reading Kaida's memories to check if he was hiding anything, but he quickly discarded the thought. Reading memories could be dangerous and cause mental harm. Kaida had now bee too valuable to risk losing such a powerful card.

  *****

  ((A.N.): Hey, if you liked this heory I came up with, please leave a ent. Or if you have any doubts or problems with it, I'm open for discussion ^~^)