The Kamui Dimension was a fist-sized orb radiating chaotic light. The Heart of Deep Love was a bright red heart shape.
"Kamui Dimension: The light that parts chaos. Upon absorption, you will gain an exclusive sub-dimension of your own. You can freely transition between reality and this dimension, and you can also suck in or release other objects at will."
"Heart of Deep Love: A magical heart. Using it will grant a person a deeply affectionate heart."
The Heart of Deep Love belonged to the series of personality-altering hearts.
As for the Kamui Dimension...
Honestly, Jokichi hadn't expected to forge such an item independently. He was even planning to use Obito's Sage Crystal!
Although his Rinnegan possessed space-time abilities, and he was also capable of using a Kekkei Mora technique like Yomotsu Hirasaka.
However, the Rinnegan and Yomotsu Hirasaka could only be used to open spatial portals. They couldn't perform long-distance spatial distortion or self-intangibility.
The Kamui's abilities would be a massive help to him.
But with this item, there was no need to waste a crystal.
After absorbing the Kamui Dimension, a sudden spark of enlightenment appeared in Jokichi's mind. Deep within his consciousness, he felt a connection to an alternate dimension.
"Kamui!"
His chakra surged, and the air trembled faintly. The space in front of Jokichi instantly formed a distorted vortex, swallowing him entirely.
...
The dim space twisted and spiraled as Jokichi's figure emerged from within.
He glanced around the seemingly endless void. In the pitch-black abyss below, countless stone platforms stood tall. It looked exactly like Obito's Kamui dimension.
"It shouldn't be the exact same one, right?"
Jokichi wasn't entirely sure.
Although the system had explicitly stated that this was his own exclusive sub-dimension, it looked far too identical to Obito's.
However, he didn't dwell on it for long.
Even if this was indeed Obito's dimension, it didn't matter. In this world, Hatake Kakashi was the only other person who had a connection to it, and he couldn't physically enter it anyway.
I just have to be careful when Kakashi is around.
Storing the other items into the system space, he immediately brought out the final material, which was the main event of this haul.
[Ding! Special material "Remains of the Divine Tree" detected. The special items "Divine Tree Seed," "Divine Tree Crystal," and "Energy Furnace" can be forged. Forge now?]
"Forge."
Jokichi chanted silently in his mind, and three more items appeared in his hands.
A plant seed, a thumb-sized green crystal, and a palm-sized cauldron radiating a dreamy glow.
"Divine Tree Seed: A seed of the Divine Tree. Plant it in soil rich with natural energy, and it will grow naturally. The growth speed depends on the abundance of natural energy in the environment. (Note: The lifeforce of living creatures can also be used as fertilizer to accelerate its growth.)"
"Divine Tree Crystal: Contains the power of the entire outer shell of the Divine Tree. Upon absorption, you will gain unparalleled vitality and unimaginably powerful Wood Release. It also grants the ability to absorb natural energy and lifeforce."
"Energy Furnace: A conceptual artifact. It is capable of absorbing energy of any attribute and fusing it all together."
Before Jokichi could inspect them closely, the system's notification rang out in his mind again.
[Ding! Detected that the host possesses items of the same origin: 'Ring of Shukaku,' 'Ring of Matatabi,' 'Ring of Isobu,' 'Ring of Son Goku,' 'Ring of Kokuo,' 'Ring of Saiken,' 'Ring of Chomei,' 'Ring of Gyuki,' 'Ring of Kurama,' and the 'Energy Furnace.' The new item 'Furnace of Heaven and Earth' can be fusion-forged. Forge now?]
"Awesome!"
Jokichi praised aloud and chose to forge.
Instantly, the nine Tailed Beast rings and the Energy Furnace flew out of his hands, glowing in various colors as they merged together in midair.
As the light dissipated, an archaic, palm-sized cauldron carved with the likeness of the nine Tailed Beasts revealed itself.
Jokichi immediately reached out to catch it. The system's description materialized on his retina.
"Furnace of Heaven and Earth: A conceptual artifact containing colossal amounts of chakra. It can absorb energy of any attribute, fusing it together or converting it into a single specific nature. It automatically absorbs natural energy and lifeforce. (Note: This item can fuse with a human body, allowing the user to freely wield its energy and abilities.)"
After reading the system's introduction, I can't help but sigh. Isn't this just the Ten-Tails in a different shape?
Their abilities were identical, and it possessed the chakra of all nine Tailed Beasts.
Only its ability to absorb natural energy to grow a chakra fruit had been upgraded into the power to absorb, fuse, and convert any elemental attribute.
Jokichi didn't overthink it. Holding the furnace, he initiated the fusion with his body.
The fusion process was incredibly simple. Upon touching his body, the furnace slowly melded into him on its own.
Once the fusion was complete, he felt an unprecedented surge of power flooding his entire body.
In his abdomen, at the junction where body and consciousness met, the furnace containing boundless energy acted like a mechanical engine, supplying an endless stream of power to Jokichi.
"My physical hardware should be comparable to Kaguya's by now, right?"
Jokichi clenched his fists, feeling the rushing power before muttering uncertainly.
Kaguya was the Divine Tree itself. Not only did she possess the entire tree, but she had also eaten the chakra fruit grown from a millennium of absorbed natural energy, stripping away countless human lives in the process.
The amount of chakra Kaguya possessed was absolutely beyond imagination.
The energy within the Furnace of Heaven and Earth rivaled the Ten-Tails. However, Jokichi wasn't sure if his own chakra reserves could match Kaguya's chakra fruit and the lifeforce of countless sacrifices.
However...
"Even if I can't match her yet, it doesn't matter. I still have this."
Holding the newly forged Divine Tree Crystal, Jokichi absorbed it directly.
Instantly, vigorous life energy erupted within him, nourishing and strengthening his body cell by cell.
His vitality and spiritual power surged like a torrential flood, and his chakra reserves exploded in tandem.
Unlike the Furnace of Heaven and Earth, which was merely a tool he had merged with to borrow its power, the crystal was different.
This crystal was actively transforming Jokichi himself.
Under the cleansing rush of that majestic life energy, every cellular structure and even the very genetic strands in his body were undergoing rapid mutations.
Jokichi's eyes rapidly shifted between the Byakugan, the Rinnegan, the Sharingan, and the Tenseigan.
Suddenly, the cycle of four ocular jutsu was reduced to three.
The Byakugan disappeared.
Fueled by the immense life energy, all four eyes were continuously evolving. The Byakugan had been fully absorbed and merged into the Tenseigan.
Next, the Sharingan vanished as well, absorbed by the Rinnegan.
As a result, his Rinnegan turned blood-red. It now possessed the ocular power of both the Sharingan and the Rinnegan, evolving into the Rinne Sharingan.
Afterward, the Rinne Sharingan and the Tenseigan continued to shift and evolve, each attempting to absorb the other.
But even as the surge of energy neared depletion, neither could overcome the other, nor did they wish to co-exist in the same space.
In the end, the ocular power of the Rinne Sharingan left his twin eyes, taking up residence in the center of his forehead.