Naruto: Swarm System

"Rin, how does it feel to be revived?"

Hearing Shishou's question and feeling his touch, Nohara Rin blushed slightly and smiled, "It's amazing. I feel so strong now, like I can defeat a hundred of my old selves."

Shishou retracted his hand and laughed, "You used to be quite weak, Rin. Beating a hundred of your old selves isn't much of an achievement."

Indeed, as the student of the Fourth Hokage, Nohara Rin had been incredibly weak during her life.

"Hey, no need to point that out!" Rin pouted, glaring at Shishou. She was well aware of her previous lack of strength.

"Alright, let me check your current abilities," Shishou said, taking Rin's hand and leading her to the training area in Ryūchi Cave.

Holding Shishou's hand made Rin's heart race, and she quickly tried to make conversation, "When did you get back?"

"Yesterday," Shishou replied, noticing Rin's flustered expression.

It all made sense now—yesterday, Kushina, Mikoto, Raiko, and Konan had all left, leaving Rin alone in Ryūchi Cave.

In the training room, Shishou created a shadow clone to spar with Rin. Quickly, he gauged her current strength. Under Kushina's guidance, Rin had made remarkable progress. Combined with the Hashirama cells Shishou had implanted in her, she had reached a solid Jonin level within three years.

With her new strength, Shishou considered giving Shisui's Kotoamatsukami to Rin to use against Uchiha Obito. However, without Uchiha blood, Rin couldn't deactivate the Sharingan at will, making it less suitable for an ambush.

Watching his shadow clone press Rin, Shishou sighed inwardly. He would need to implant Uchiha Madara's cells to awaken Uchiha bloodline abilities in her.

Obito's double Kamui was too powerful to take any chances. He also pondered awakening Uchiha bloodline abilities in Tsunade and the others, enhancing their overall strength.

From his time with Kaguya, Shishou learned that the so-called Six Paths power derived from the God Tree, with the Sharingan being an extension of that power.

In Shishou's understanding, the strongest beings in the universe were the leaders of the Otsutsuki clan, who had consumed many God Tree fruits. Next were those like Kaguya, who had eaten one or several fruits, gaining a Kekkei Mōra. Following them were individuals like Hagoromo, who possessed God Tree power or became Jinchuriki of the Ten-Tails. The Sage creatures of the Three Great Sage Regions were comparatively weaker.

The main issue with Sage arts was their reliance on natural energy, which could be problematic if the Otsutsuki home world lacked it.

If Shishou wanted Tsunade and the others to surpass the Six Paths level and help him fight the Otsutsuki, they needed God Tree power. This was a huge undertaking, so he would start by awakening their Uchiha bloodline abilities.

Imagining Tsunade and the others each with a Mangekyō Sharingan and unique Mangekyō abilities, Shishou was excited. With mass-produced Mangekyō Sharingan, someone might even awaken the powerful Kamui.

Lost in thought, Shishou dismissed his clone and called out to Rin, "Let's go out and have some fun."

"Okay!" Rin cheered, running over to grab his hand.

Shishou raised his hand, teasing, "Why are you grabbing my hand? Do you like me?"

Rin blushed deeply and quickly let go, stammering, "I-I don't..."

Her only male contact over the years had been Shishou. He often chatted with her, took her out to play, and helped ease her loneliness. Naturally, she developed strong feelings for him, though she wasn't sure if it was love.

Before Rin could finish her sentence, Shishou pulled her into his arms and kissed her, deciding to turn her feelings into reality regardless.

Rin froze at the sudden kiss, her body temperature skyrocketing. Feeling her hot body, Shishou smiled and let go, asking, "Where do you want to go?"

Rin, dazed, stammered, "Y-You decide."

"Alright," Shishou smiled, extending his hand again.

Blushing, Rin hesitated before placing her trembling hand in his, their fingers interlocking.

In the next moment, Shishou took Rin to the capital of the Land of Water. They spent the day hand-in-hand, chatting, eating, and having fun.

By nightfall, Shishou brought Rin back to his lab, preparing to awaken her Uchiha bloodline.

While they were out, he had sent a clone to his various breeding grounds, using his Destruction Bugs to harvest enough energy and life force.

Seeing that Shishou had work to do, Rin offered, "You go ahead; I'll clean up a bit."

The lab, only cleaned once a month by Rimei, needed a thorough tidying before they could rest.

"Alright," Shishou nodded, heading to the lab.

In the lab where he kept White Zetsu, he extracted some of Madara's cells and used his Destruction Bugs to cultivate them.

Once he had enough cells, he transplanted them into White Zetsu, inducing mitosis and then using his Destruction Bugs to devour them.

The richer the Uchiha bloodline, the easier it would be for Rin to awaken the Mangekyō Sharingan.

To further ensure success, Shishou also incorporated cells from Itachi and Sasuke, cycling through cultivation and devouring before concluding the experiment.

Now, Rin would possess the power of three of the Uchiha clan's strongest members.

"It's already eleven o'clock," Shishou noted, stretching before heading to Rin's room and knocking on the door.

Hearing the knock, Rin, fresh from the shower, was puzzled. She had cleaned Shishou's room; what could he want now?

Wait... Could Shishou be thinking...

Blushing furiously, Rin's heart raced.

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POWER STONE!!!!

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This fanfiction is complete on my P@treon. If you want to read it, you can find it at [email protected]/Betek.

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