Nindō: Dominion

As the day passed, it was soon evening, but Karin was still being tortured by pleasure as Naruto honed his ability to manipulate the Truth Seeking Orbs remotely. By now, the poor Uzumaki couldn't even stay upright, held up by four orbs that were wrapped around her arms, neck, waist, and chest; adding the toy, she was being handled by five Truth Seeking Orbs at the moment. The incessant vibration and chakra infusion into her body continued, leaving her delirious as she endured a hell of pleasure.

While devoting a part of his attention to Karin, Naruto spent the rest of his time taking care of some mundane things and preparing things for the upcoming Research Center. He put much importance on the establishment of that place. Even if Ino hadn't shown up and made a deal with him, Naruto was always planning on establishing it. After all, that was why Karin was in Konoha instead of doing her thing with Orochimaru.

As Naruto was musing about the next thing to do, his door abruptly opened. He swiveled and saw himself entering his office with his disciple in his arms; she had clearly fainted from chakra exhaustion.

"I see you decided to take inspiration from Sasuke's methods of training," Naruto raised a brow.

"That's why I'm here. To push her beyond her limits. Otherwise, there's no point in doing all this."

"Good work. Put her on the couch, and you can go."

"Thank fuck," The clone sighed emphatically and gently put Sarada on the couch before disappearing with a cloud of smoke, transferring all its memories to Naruto.

Naruto suddenly furrowed his brows, frowning deeply, "Why, though?" He was deep in thought and approached Sarada, infusing her with his chakra. The effects were immediate, and Sarada's chakra started recovering. Her exhausted state visibly got better. "Then why would a clone not work … Does it have to do with the fact that my clones have a separate consciousness?" He was speaking to himself.

[It makes sense if you stretch it a bit.] Kurama gave his opinion. [Your clones don't have the same connection that you do to the mark holders. Logically, their chakra wouldn't be recognized by the mark as yours, hence being treated as regular chakra. After all, your clones—although duplicates— are based on working with a completely separate consciousness from yours.]

"It's understandable. But it is still inconvenient. It weakens the potential uses of the ability."

[You could always try to create a new clone technique that uses that Shinjutsu stuff. Maybe you can create true clones with that.]

"I'm neither my father nor the second Hokage, Kurama," Naruto shook his head. "I'm not a jutsu inventor. I guess it's yet another thing to add to the ever-increasing list of things that the research center needs to work on. Or, conveniently, an Ōtsutsuki could show up with that exact ability. Anyway, she's probably going to be pleased after hearing that she needs to come to my office regardless."

[Training to the point of passing out every single day. It has to be taxing on the poor girl.] Even Kurama felt for Sarada's situation. The young kunoichi had been pushing herself like crazy for almost a month now.

[The results speak for themselves. She's already firmly surpassed Boruto, both in techniques and battle endurance. Even Mitsuki wouldn't have it easy if he went against her. I've seen her taking a much more central role in their missions as well recently.]

[Hearing your words, one would think that she's your child instead of your actual child.]

[It's complicated, Kurama … Boruto is … well, he has his own fate to deal with. I may have prevented Momoshiki's Kāma from parasitizing him, but that won't just change his fate. It will merely mold itself according to the circumstances.]

[You never get tired of playing that mysterious vibe, do you? As if you know so much more than I could ever imagine.]

[It's true.] Naruto shrugged casually, eliciting a snort from Kurama as the fox expressed his disdain to respond.

"M-master ..." The girl instinctively sat up and looked at Naruto before asking with a wince. "What happened? You–your clone said that he would help me recover but abruptly decided to bring me to you." Her hand made its way to her forehead. Naruto's clone hadn't anticipated that its chakra wouldn't even work, pushing Sarada too far.

"Shh, come here first," Naruto knew the situation and sat down beside her, making her rest her head on his thigh as he pressed his thumbs on her forehead.

"Ughh …" She groaned comfortably as the headache directly lessened.

"It's complicated, but my clone can't transfer Matatabi's chakra from me to you. I didn't expect to encounter this issue, and that led to this situation right now."

"Oh …" She said with half a groan, only half listening to Naruto's words. Her focus was on the comfort and warmth that was rapidly spreading throughout her whole body, making all the aches and pains of training so rigorously disappear.

As Sarada was still recovering, Naruto had a thought and decided to communicate with someone other than Kurama among the tenants in his head.

[Matatabi, you there?]

[What is it, Naruto Uzumaki?] The flaming cat spoke in a distinctly feminine voice.

[I'm going to send some of your chakra to my disciple. You know, to get her ready to eventually become your jinchūriki.]

[No worries. You may do as you please. I'm already prepared to join a new partner.]

Naruto nodded in response, "Open your eyes, Sarada. Show me your Sharingan."

"Okay, master," The Uchicha nodded. This wasn't the first time Naruto had asked that. Occasionally, her master would infuse some chakra into her eyes and observe the effects. She couldn't tell what was going on or what he was doing, but she trusted that the Hokage meant her no harm.

Having spent her entire childhood hearing the praises of the hero of the Fourth War, Sarada's trust in Naruto was unconditional. His exploits were all spoken of not only in school and the academy but in her own mother's stories as well, always depicting the Hokage as a selfless hero who would stop at nothing to support his comrades. However, there was an extra angle that depicted the klutzy nature of the man when it came to her mother's stories. Still, that only made Sarada look up to him further. And she wasn't the only one; almost all of her classmates and children of her generation had the same perception of the Hokage. The man was an infallible hero in their hearts.

As her Sharingan was revealed, Naruto nodded to her after seeing the two tomoe in the perfect circular outline. His chakra moved in a particular pattern that then revealed Sarada's dominion mark, showcasing her mutated Sharingan that possessed a whirlpool with four tomoe.

'If I stop suppressing the mutation, it will already be something beyond the normal Sharingan.'

"C-can I put it away, master?" Sarada asked, feeling a little flustered. After all, while a mere examination, she was still looking into Naruto's eyes. She was embarrassed.

"You should stop getting embarrassed by this, Sarada," Naruto shook his head. "I will have to examine your Sharingan occasionally to see if my chakra is inducing any mutations or not."

"W-what?" The girl was shocked. 'What do you mean, mutation?"

"You should ask your father that. He should be able to give you a better answer," Naruto shook his head before intensely looking into Sarada's four-tomoe Dominion Mark Sharingan. "Now, stay still, I'm going to try something."

Sarada gulped in response as Naruto controlled a very small sliver of Matatabi's chakra and used his connection with Sarada to send it to her through the Dominion Mark. Since his chakra was already spread all through Sarada's body, he would be able to closely observe whatever changes would occur in her with this infusion.

"Ah!" The girl shrieked cutely the very moment Matatabi's chakra entered her system.

[Ah!] At the same time, Matatabi's shriek was much more solemn.

[What's going on?] Kurama asked, his curiosity getting the better of his usual aloof image that he maintained in front of his siblings.

Naruto kept a close eye on the chakra just as it entered Sarada's body through her Dominion Mark. From her eyes, Matatabi's chakra spread through her entire body, passing through her chakra network while leaving minute traces at each tenketsu.

As for the girl in question, her physical reaction was almost violent. Her body curled up, and she looked like she was having a seizure as she buried her face in Naruto's stomach, desperately holding him. She was constantly groaning as the Tailed Beast's chakra passed through her chakra system repeatedly as if making rotations. Each rotation left more and more slivers at her tenketsu that were slowly being absorbed by her body and melding with her chakra.

Naruto gently rubbed the girl's back, using his chakra to speed up the absorption of Matatabi's chakra into her system.

Although what had entered Sarada's system was a mere sliver of Matatabi's chakra, it was still the chakra of a Tailed Beast. That mere sliver was comparable to Sarada's entire chakra reserve.

[Naruto?] Kurama called after not receiving an answer from either Naruto or Matatabi.

[Can you feel your connection to that chakra, Matatabi?] Naruto had an idea of what had just happened but still needed to confirm it.

[N-no.] The tailed beast was a little shaken up. [It's as if my chakra was completely devoured and assimilated by that child.]

[As expected …]

[Naruto …] Kurama's call came out as a displeased growl.

[You sensed it, didn't you, Kurama?]

Kurama's only response was a deep, angry growl.

[I sensed traces of that forbidden technique …] Matatabi spoke softly. [The Baryon. Did you do that, Naruto Uzumaki? Assimilate my chakra into that child, as it works with the Baryon.]

[That's not it …] Kurama calmed down after a few seconds as Naruto focused on Sarada. The kunoichi was still overwhelmed by Matatabi's chakra.

[The Baryon is consumable. This assimilation? Not only did it not consume the chakra and lifespan of that child, it directly strengthened it to such a degree that it is comparable to the enhancement brought by the Baryon.]

[Has Naruto Uzumaki perfected that technique?] Matatabi wasn't particularly concerned about the ramifications of the situation and was more curious.

[Not to my knowledge …] Kurama responded as Naruto continued supporting the assimilation of Matatabi's chakra into Sarada.

***

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