From the night of genocide, marching towards the strongest.

After confirming that it was correct, he let out that inexplicable, arrogant low laugh.

Or was it influenced by the personality of this body?

Or is this a problem unique to the Uchiha clan?

After pondering for a moment, Sasuke calmly put the items back into the scroll. These two items would be of great help to him in the future, and might even determine whether he could stand at the pinnacle of this world.

After all, these are his parents' Sharingan, essential for his future advancement to the Eternal Mangekyou Sharingan. In some ways, the blood ties between father and son, or mother and son, are closer than those between brothers and sisters.

Two kaleidoscopes combined create the Eternal Kaleidoscope, but what about three pairs?

Even four pairs?

Can it evolve into the Rinnegan?

Or rather, a super Sharingan that is no less powerful than the Rinnegan?

His mother's Sharingan only had three tomoe, but there are so many strange things in the ninja world that it's not impossible for it to evolve into the Mangekyou Sharingan in the future.

Then when he awakens the kaleidoscope, he will have three pairs of kaleidoscopes in his hands.

However, two points need to be considered: can the three kaleidoscopes be merged?

After all, the most common scenario in the original work is the fusion of two pairs of kaleidoscopes, and as for three pairs, it has never appeared before, so it is unknown whether it is feasible.

Another point is that, whether it's his mother's Sharingan or his father's Sharingan, they are all blood relatives to Sasuke.

However, his mother and father were not blood relatives. Although they were husband and wife and belonged to the same clan, they were not related by blood.

Sasuke should be able to fuse with the Sharingan of either of them, but their original Sharingan cannot be fused together.

Is it possible to fuse the Sharingan of the two of them using him as a medium?

This needs to be verified.

As for the fourth pair of kaleidoscopes...

Sasuke's eyes flickered slightly when he thought of Itachi Uchiha.

Chapter 5 Personal Planning

Coming to his senses, Sasuke began to summarize his current situation and compare his advantages with those of Uchiha Sasuke of the same age.

1. In terms of information: having foresight and knowledge.

Needless to say, this is his greatest advantage in the world.

2. Sharingan: Three-tomoe Sharingan.

When the original owner of this body experienced the massacre of his clan, he only awakened one single and one double Sharingan, and they were latent. It wasn't until four years later, during a mission in the Land of Waves, that he reawakened his Sharingan under a life-or-death crisis.

Sasuke, having experienced the same thing, has awakened the Three Tomoe and can open and close it at will.

Perhaps because he had lived two lives, possessed special talent in his previous life's spiritual realm, and had over twenty years of adult growth experience, he directly awakened the three-tomoe Sharingan after merging with Uchiha Sasuke's soul and body.

Of course, the possibility that the physical memory of gouging out one's parents' eyes could also play a role cannot be ruled out.

3. He gained a pair of Mangekyou Sharingan and a pair of Sharingan with three tomoe.

These two Sharingan eyes are from his closest blood relatives, and they can at least help him evolve into the Eternal Mangekyou Sharingan in the future.

4. A talent similar to that of a sensory ninja.

This talent was something he was born with in his previous life; his body had an extremely keen perception of sight, and after merging with this body, it was enhanced to an even greater degree.

In his previous life, he needed to stare intently at the camera to vaguely sense if someone was spying on him. Now, with the Third Hokage's crystal ball, which is even more concealed than the camera, Sasuke can instantly sense that the Third Hokage is spying on him without even making eye contact.

However, unlike sensory ninjas, who are able to use chakra to sense the flow, location, and direction of movement of chakra within a radius of several kilometers, or even tens or hundreds of kilometers.

Sasuke only has a simple visual perception, which is not as good as that of a sensory ninja, but for him now, it is still a very strong support ability. At least he doesn't have to worry about being spied on or ambushed.

Roughly estimating, Sasuke has four advantages over the original body. Since he has only mastered this body for less than five days, without the Sharingan, his ninjutsu and taijutsu skills in his blank body are not necessarily stronger than the original body's, at least for now.

After summarizing his current situation, Sasuke walked to his desk, picked up a pen, and prepared to make a simple plan.

How to rapidly increase strength?

What are my current goals?

After asking himself this question, Sasuke picked up a pen and wrote two sentences using a mixture of Chinese pinyin and English.

Fuse the Mangekyou Sharingan to evolve the Eternal Mangekyou!

Without a doubt, given that he possessed his father Fugaku Uchiha's Mangekyou Sharingan, his most important goal and the fastest way to increase his strength was to transplant his father's Mangekyou Sharingan and evolve it into the Eternal Mangekyou Sharingan.

To achieve this goal, Sasuke now faces two challenges.

1. Sasuke's own Sharingan needs to evolve into the Mangekyou Sharingan before it can be transplanted.

2. Learn medical ninjutsu, or find someone you trust to perform the transplant surgery for him.

Looking at the words on the paper, Sasuke narrowed his eyes and fell into deep thought, considering how to solve these two problems.

First, let's talk about the first one, the Mangekyou Sharingan.

In the original work, the condition for advancing the Mangekyou Sharingan is—"understanding love, losing love."

Once a member of the Uchiha clan who has come to understand love loses that intense love, that love will be replaced by an even stronger hatred. After experiencing intense pain, a special chakra will surge into their brain, acting on their optic nerve and causing their eyes to change, eventually evolving into the Mangekyou Sharingan, which reflects the soul.

Of course, there's a prerequisite—that Uchiha who understands love and loss must also possess considerable mental talent.

As he wrote this, Sasuke thought of Obito Uchiha and added, "This talent should be divided into latent and overt types."

As soon as he finished writing, Sasuke frowned when he saw the requirements for advancing the Mangekyou Sharingan.

This body's talent is not bad, it can even be said to be extremely excellent. After all, it is one of the main characters. Not to mention that after the fusion, its mental aspect was greatly enhanced.

But to understand love, and to lose love?

Sasuke shook his head inwardly. Even when his parents died in front of him, he didn't awaken the Mangekyou Sharingan under such stimulation. Moreover, he could feel that he was gradually taking control of this body, and the impact of those memories on him was getting smaller and smaller. Now, when he thought of the scene that night, he no longer felt the same overwhelming grief as before.

If things continue like this, even if Itachi Uchiha dies at his hands as in the original story, he might still not be satisfied with the condition of knowing how to love and losing love.

Even if he could achieve that, Sasuke didn't want to be treated like he was in the original final battle, where he was given a lot of leeway and had everything arranged perfectly, and to open his Mangekyou Sharingan in that kind of way.

Throughout his life, he was manipulated and deceived by others, such as Orochimaru, Itachi Uchiha, Obito Uchiha, and Itachi Uchiha again...

Having finally mastered the ultimate power, he discovered that he was the reincarnation of someone else's chakra will, and that the Six Paths father had already arranged everything.

Now that he has become the master of this body, he cannot follow those people's plans, whether good or bad.

Do you really think you can control everything?

I can only decide my own life. I do things because I want to do them, not because you tell me to do them.

Oh......

Thinking of this, Sasuke's gaze became deep, and his mind raced, processing countless pieces of information he had obtained from the original work in his previous life in just a few breaths to solve the problem of advancing to the Mangekyou Sharingan.

In the manga, the Sage of Six Paths of Ninja Sect was born with two Rinnegan eyes, with a moon-like eye between his eyebrows. The Rinnegan is an advancement of the Mangekyou Sharingan. In the anime, the Sage of Six Paths did experience some kind of shock, instantly awakening the three-tomoe Sharingan and then immediately awakening the Rinnegan. However, in the manga, he was born with the Rinnegan and did not experience any such shock.

If we're using comics as a reference...

The reason why the Sage of Six Paths was born with the Rinnegan was simply because his bloodline was pure and his innate spiritual energy was powerful.

The Uchiha method may simply be one way to advance to the Mangekyou Sharingan. It involves a strong emotional stimulus that greatly increases mental energy, leading to a qualitative change in eye power and a meteoric rise to the top.

If he cannot achieve the kaleidoscope through this one-step method, then perhaps he can increase his spiritual energy, accumulating small streams to form a mighty river, gradually increasing the quantity and progressing step by step to produce a qualitative change.

Even if things don't go as planned, increasing his mental energy is beneficial and harmless to him.

With that in mind, Sasuke wrote the words "increase mental energy" on the paper and added a few lines below it.

Temper your will.

Accumulate experience.

Meditation practice.

These are the three methods of spiritual cultivation that he could think of from his experience. Of course, in addition to these three, he would also try to find out if there were any cultivation methods to increase spiritual energy within the Uchiha clan.

Having found a solution to the first problem, Sasuke turned his attention to the second problem—medical ninjutsu!

Sasuke's current body is not a Sage Body like Madara Uchiha's, so he can't use the Sharingan and Rinnegan on demand like Madara did. Therefore, he must solve the problem of medical ninjutsu.

According to his own memories, the ninja academy did not teach medical ninjutsu, but only some pharmacology and nursing knowledge.

After all, the requirements for mastering medical ninjutsu are extremely high.

First, one must have a thorough understanding of human anatomy.

Second, extremely precise chakra control.

Third, master Yang Release chakra!

The founder of medical ninjutsu was Hashirama Senju. Hashirama Senju used special techniques to inject the life force of Yang Release into patients, stimulating cells to heal wounds. Through transformation, he could also achieve the effects of detoxification and attack.

Yang Release chakra sounds sophisticated, but it's not actually that advanced. The Akimichi clan's Multi-Size Technique is a Yang Release ninjutsu, and medical ninjutsu is also a branch of Yang Release ninjutsu.

The advanced version uses the power of the Six Paths of Yang, not the Yang Escape technique.

The Uchiha clan inherited the Yin power of the Sage of Six Paths, but that doesn't mean Sasuke couldn't develop the Yang Release ability. Yang Release chakra is equivalent to life force, and to some extent includes the physical energy that makes up chakra.

However, physical energy is not the same as Yang Release chakra. Since it is chakra, it must be formed by the fusion and refinement of physical energy and spiritual energy. It's just that Yang Release chakra is mainly based on physical energy.

The Uchiha clan's physical energy is only weaker compared to the Senju clan, but it is much stronger than that of others.

'I just don't know if my Yin Release chakra will suppress Yang Release, preventing me from mastering the Yang Release attribute.'

Sasuke pondered to himself, it seemed that even until the final battle, Sasuke's attribute in the official databook did not include Yang attribute.

It's important to understand that at that time, while his body wasn't as strong as Naruto's Six Paths Body, it was still far superior to an ordinary Sage Body. Furthermore, he had awakened the Rinnegan, symbolizing the unification of all things in the universe. Why then did the official guidebook state that his original form lacked Yang attributes? Was this a retcon, a distortion of established lore? Or was it a deliberate attempt to highlight the difference between Naruto and Sasuke?

Let's set aside the third point for now and focus on mastering the first two. Even if I don't master medical ninjutsu in the end, I'll still have some medical skills by then, and performing an eye transplant on myself shouldn't be too difficult.

After finishing writing, Sasuke summarized it into two points.

Increase mental energy.

Mastering medical ninjutsu would at least allow one to perform an eye transplant on oneself.

After reviewing the details of the plan in his mind, Sasuke burned the paper.

"Who keeps a diary if they're a decent person?"

Sasuke chuckled to himself, even though the text on it was written in a mix of pinyin and English, there was still a possibility that it could be exposed and cracked. Being cautious in everything he did, he still burned it.