Uchiha Kō was placed on his bed in his room by Senju Tobirama. He pondered for a moment, thinking about the connection between eye power and Chakra.
He began to peruse ancient texts. The Sharingan Chakra of the Uchiha Clan was cold and violent, a typical Yin Release Chakra. Even when it was upgraded to the Mangekyo, it still used Yin Release Chakra.
Senju Tobirama looked at his hands and couldn't help but marvel at how he had one day transferred his Yin Release Chakra to save the Uchiha brat.
He shook his head, then began to extract Yin Release Chakra. The black Chakra coiled around his right hand, which he then injected into Uchiha Kō's head, or more precisely, his left eye.
For a Ninjutsu master, one of the strongest in the Warring States Period, Senju Tobirama Chakra far surpassed that of anyone of his time!
Among the Senju Clan, Senju Hashirama possessed all Chakra natures except for Yin Release Chakra, while Senju Tobirama possessed all Chakra natures.
Therefore, he can extract Yin Release Chakra, and in large quantities. After all, his mental strength is also very strong; otherwise, how could he create forbidden techniques? How could he create Genjutsu like Darkness Genjutsu?
With his Senju Tobirama raised his right hand and converted the Chakra within his body into Yin Release Chakra. This process, which would seem difficult to others, was a piece of cake for him.
Within the spiritual space
The system screen is currently displaying a conversation with Uchiha Kō.
"System, how many days do you think it will take to implant the Eternal Mangekyō Sharingan?" Uchiha Kō asked with a smile.
"Ding, approximately ten days, because the system not only needs to repair the host's own Resurrection Eye but also implant another Mangekyo ability into it."
"Ten days? Wouldn't Tsunade be worried to death? No, no, how about five days, system?" Uchiha Kō tried to bargain.
The system remained silent, simply manipulating the power of the Eternal Mangekyō Sharingan and channeling it into Uchiha Kō's right eye.
"It's not impossible, but you won't be able to choose the skills; you'll just get whatever you get randomly," the system said calmly.
Uchiha Kō immediately soured. He couldn't help but sigh. This wouldn't do. What if it was some kind of Amaterasu?
Moreover, according to the panel shown by the system, there is a 50% chance of drawing Amaterasu if a complete repair is not performed!
There's a saying, isn't there? Amaterasu that can't kill people? That won't do! He sighed and could only go out and make it up to Tsunade later.
Unexpectedly, the system voice sounded the next moment, "Ding, it has been detected that the host is being continuously injected with Yin Release Chakra by Senju Tobirama. The system repair difficulty has decreased by 70%, and it is estimated that the complete repair will only take two and a half days."
A giant countdown timer stood overhead, the sixty-hour countdown began, and the system stopped responding to him, instead using this Chakra to repair the damaged Resurrection.
According to the system, after the left eye Resurrection and becomes the Eternal Mangekyō Sharingan, the number of resurrections will be refreshed to a total of five, and an additional upgrade effect of Longevity will be added.
Longevity: By using the Mangekyo Dōjutsu of Longevity, one's bodily functions can be restored to their peak. Cooldown time is 2 years. The soul is immortal and lifespan is endless! (Remaining uses: 2)
Right eye Mangekyo Sharingan Dōjutsu, Will of the War God, fully upgraded. I am the War God. After casting, all attributes are doubled. Duration: 2 hours. Cooldown: 12 hours. (Note: The attribute multiplication is based on the strongest state. For example, Uchiha Kō in Sage Mode receives a double bonus from Sage Mode.)
This only covers the evolution and skill effects of the original Mangekyo; the other two are optional. In short, the Eternal Mangekyō Sharingan has four skills: the original two and two optional ones.
Uchiha Kō exclaimed, "The cheat codes are back again! These skills are so useful! The original skills were already powerful enough, and now they've been strengthened!"
The wait was getting a bit boring, so the system sensed the host's emotions and tossed him a book: <To Find Out What Happens Next, Give a Five-Star Review and Leave a Comment>.
Uchiha Kō smiled contentedly as he read the book to pass the time.
Outside
Senju Tobirama had been channeling Chakra for twelve hours, and he was covered in sweat, yet he was still refining Chakra!
His consciousness was somewhat blurred, but he was still gritting his teeth and persevering. Uchiha Kō had sacrificed one of his Mangekyō Sharingan in order to revive his brother's family, and this debt of gratitude was immeasurable.
Even if I ruin my health, as long as I can wake up Uchiha Kō, it's worth it!
Senju Hashirama sensed something was wrong, so he pushed open his brother's door and immediately realized that his younger brother was forcing him to extract Chakra!
This guy! He didn't even tell his older brother about something! Then, the elemental Chakra was injected into Senju Tobirama by Senju Hashirama.
The previously dazed Senju Tobirama suddenly perked up. "Big brother! What brings you here!" His face was filled with shock and joy.
"Heh, if I hadn't come, were you planning to destroy the very foundation of your body? If you need Chakra, just tell me, and I'll give you non-attribute Chakra so you can convert it!" Senju Hashirama couldn't help but retort.
Senju Tobirama smiled and said, "Alright, thank you for your trouble, brother!"
"No problem!" Senju Hashirama chuckled. However, he was quite meticulous in transferring Chakra. A small portion was used to nourish Senju Tobirama's body, while the majority was given to Tobirama to manipulate the non-attribute Chakra into Yin Release Chakra.
With Hashirama's involvement, Chakra delivery gradually stabilized, and the amount gradually increased.
The system notified you, "Ding! Due to Senju Hashirama's addition of Chakra transfer, the evolution is expected to be complete by tomorrow morning. Current progress is 55%. You can now pre-select the Eternal Mangekyo ability!"
Uchiha Kō glanced at the skill description and was immediately filled with excitement. After pondering for two hours, he finally made his choice.
Time Leap and Soul-Shattering Nine Netherworlds
Time Leap allows one to lock onto a specific point in time using the power of the Eternal Mangekyo —either the future or the past! However, it comes at a huge cost!
Soul-Shattering Nine Netherworlds is Ninjutsu targeting souls. The soul of the ninja who uses this Dōjutsu is instantly captured and subjected to endless burning in the Nine Netherworld Hell until it shatters and is refined into nourishment! (Extremely effective against the Ōtsutsuki Clan!)
System:...
This host is being a bit impolite. There are only two SSS-rank Dōjutsu, and he chose both. Just as it was about to speak, Uchiha Kō stared with his big eyes, as if asking, "Isn't that allowed?"
The system felt like committing suicide, but ultimately agreed to imprint these two skills onto his Mangekyo.
Uchiha Kō felt relieved, shaking his leg, and began to look forward to the countdown ending quickly, to tomorrow arriving soon.
This is an extra chapter at five in the morning! I hope you all enjoy it. Please leave comments and Lao Guan to help me update. Thank you all!