Sharingan Spying Creature

This mysterious creature belonged to Shin Uchiha. It had four small limbs and what appeared to be a tail, an askew mouth and a nose. Its single eye featured a fully matured Sharingan. The creature was very stealthy, able to spy at the gate of Konohagakure without being detected. Its vision was linked to Shin Uchiha and his son's, enabling them to notice the movements of their targets. The creature could also act as a verbal communication medium, seen as Shin received orders from his father through it. By taking on the form of Shin's Mangekyō Sharingan, the creature could use a type of space–time ninjutsu, although it is unknown if it possessed this ability itself or if it acted once again as a medium.

The creature was used by Shin Uchiha to notice the departure of Sarada Uchiha from Konohagakure. Upon seeing the vision, one of Shin's clones was ordered to capture Sasuke Uchiha's daughter. A bit later, after the clone clashed with Sarada, Chōchō Akimichi and Naruto, Shin ordered him to withdraw through the creature. Shin's clone and the creature then flew by using space-time ninjutsu.[2] Later, when its master was ready to begin another attack, the creatures teleported him and six copies of Shin to Naruto and Sarada. When the Shin clones betrayed their father, Shin attempted to kidnap Sarada and Chōchō for hostage purposes, ordering the creature to take them. However, Sarada caught sight and punched the creature in the eye, killing it.

Shin Uchiha's Space–Time Dōjutsu

With his Sharingan, Shin has access to a unique space–time ninjutsu. Being drawn inwards to a spiralling void focused on his right eye, Shin is instantaneously transported to virtually any location of his choosing.

This is done by generating a spatial barrier, that warps anyone and anything within its confines. It can even effect chakra-based substances. To fit the situation, the spatial barrier's size and shape can be manipulated at will. Shin is also able to channel the usage of this technique through his Sharingan Spying Creature. Doing so allows Shin to plan for a strategic retreat should the need arise. After being temporarily incapacitated by Sakura's sneak-attack during his battle with Sasuke and Naruto, the creature was able to rescue its master while kidnapping the former before any of the latter could react.

Sharingan

The Sharingan (Literally meaning: Copy Wheel Eye, Meaning (Viz): Mirror Wheel Eye) is the dōjutsu kekkei genkai of the Uchiha clan that appears selectively among its members. It is regarded as one of the Three Great Dōjutsu (San Daidōjutsu, Literally meaning: Three Great Eye Techniques), the others being the Byakugan and the Rinnegan. When an Uchiha experiences a powerful emotional condition with regards to a person precious to them, their brain releases a special form of chakra that affects the optic nerves, transforming the eyes into Sharingan; for that reason the Sharingan is described as an "eye that reflects the heart" (Kokoro o utsusu hitomi). Often, as per the Uchiha's so-called "Curse of Hatred", this emotion is a negative one, brought on by stress or loss. The emotion can also be positive, driven by a desire to protect or reunite with a loved one. Assuming that the user is aware they have awakened the Sharingan, they are thereafter able to freely use it. When first awakened each Sharingan usually will have only one tomoe, although in Obito Uchiha's case, he immediately gained two tomoe in each of his eyes. Through training and continued use the Sharingan will develop a second tomoe and then, upon full maturation, a third. All the Sharingan's abilities are available to the user from its earliest stage, but with greater development comes greater proficiency with those abilities. As with any dōjutsu, Sharingan can be transplanted into non-Uchiha. They are unable to deactivate it and its use has a greater chakra demand for them than for actual Uchiha, who need only minimal chakra to keep it active. For these reasons, non-Uchiha tend to cover their Sharingan when they aren't using it in order to conserve chakra. Sharingan that originate from the same Uchiha are still linked to some extent even when wielded by separate users, at times enabling those users to see the same things.

The Sharingan grants the wielder two broad abilities: the "Eye of Insight" (Dōsatsugan) and the "Eye of Hypnotism" (Saimingan). Although the abilities are not literally restricted to certain eyes, Madara Uchiha notes that two Sharingan are required in order to be utilised to their fullest potential. Even within these two categories there may exist several distinct though similar abilities: "Eye of Insight" The user can see chakra, giving it colour in order to distinguish it by its composition and source. Though not as capable in this regard as the Byakugan, it can see chakra through some (but not all) obstructions and detect irregularities in a person's chakra flow, such as those caused by genjutsu influence. The user is granted incredible clarity of perception, enabling them to read lips or mimic something like pencil movements. In combat, this allows them to see fast-moving objects and, once fully developed, offers some amount of predictive capabilities: they can anticipate an opponent's next move based on the slightest muscle tension in their body and act accordingly to dodge or intercept. Although a Sharingan user can see these things, they also need the physical ability to actually act on the visual information. The user is able to copy almost any jutsu they see, memorising ninjutsu, genjutsu, and taijutsu with near-perfect accuracy. They can then either perform that jutsu or modify it to suit their needs, as when Sasuke Uchiha bases his Lion Combo on Rock Lee's Front Lotus. Again, Sharingan users need the requisite abilities before they can mimic a jutsu they have seen, and for that reason they cannot, for example, reproduce kekkei genkai abilities they do not have or nature transformations they haven't learned to perform. "Eye of Hypnotism" The user can perform what is generically called Genjutsu: Sharingan. While there are various manifestations and purposes of the ability, the better known one is to, through eye contact, suggest thoughts and actions to a target, coercing them to divulge information or act in a particular way, potentially without the target's awareness. In extreme cases, the Sharingan user can take complete control of the target's body, forcing them to do exactly as the controller wishes; this control is visually indicated by the Sharingan's design appearing in the target's eye. The Uchiha are particularly infamous for using this ability on the Nine-Tails, and in fact can enter its or another tailed beasts' jinchūriki's subconscious to more precisely control the beast's chakra. Multiple targets can be taken control of in this way, though the more divided the user's attention is, the easier it is for targets to escape this control. While not an ability per se, the Sharingan user can appear as if they are able to "see the future". First, the user must perfectly mimic every move their opponent makes and possibly their thoughts and words through careful observation. Then, they suggest an action to the opponent such as hand seals for a technique that the opponent and Sharingan user already know and copy that. With these things done, the user can complete the action even before the opponent does, possibly using the Sharingan's genjutsu to confuse or delay them. In addition to these abilities there are two actual jutsu that a Sharingan user can perform: Izanagi allows the user to warp reality for a short time, changing reality into illusion and illusion into reality, thus escaping death and rewriting destiny; Izanami traps the victim in an infinite loop disregarding the target's five senses, specifically designed as a reprimand for those who would abuse Izanagi. Use of either ability causes the Sharingan with which it is performed to be blinded afterwards, and for that reason the Uchiha classified them as kinjutsu.

Shin Uchiha

Shin Uchiha (Uchiha Shin) is a former test subject of Orochimaru. After developing a fixation on the Uchiha clan and more specifically, Itachi Uchiha, Shin took the Uchiha name for himself and left Orochimaru, taking his sons with him. Believing that peace was detrimental to human evolution, Shin began a plot to revive the Akatsuki so that the ensuing conflict would be a catalyst to further human evolution. Shin was one of Orochimaru's experimental test subjects and followers, and possessed a unique genetic make-up that allowed for tissue and organ transplantation with absolutely no chance of rejection.

Together they performed various experiments, cultivating clones from Shin's teeth and nerves in order to uncover many secrets of genetics. At some point Shin became intrigued by the Uchiha clan and Itachi Uchiha. As such, he began to imitate the Uchiha, adopting their surname and customary clothing, as well as numerous Sharingan which have been implanted all over his body. His Sharingan-embedded right arm was harvested by Orochimaru and transplanted to Danzō Shimura along with some of Hashirama Senju's cells. Some time after this, Shin left Orochimaru's side and took most of his clones with him. Shin is a pragmatic, scientific individual who adheres strongly to the evolutionary principles of survival of the fittest and natural selection, believing that living organisms are slaves to their genes and exist only to survive by passing on their strongest traits to the next generation. As such, he sees conflict as a necessary component of mankind's evolution and seeks to revive Akatsuki and bring an end to the peace of the world, which he believes will cause the human species to stagnate and ultimately become extinct. Though he refers to his clones as sons, he appears to have no fatherly affection for them, instead viewing them as extensions of his own life who should be sacrificed for the sake of his continued survival. He demonstrates this lack of emotion by using one of his clones as a human shield, then harvesting the clone's vital organs to surgically replace his own, killing the clone in the process. Though typically logical, Shin has a peculiar fascination with Itachi Uchiha and has adopted the Uchiha surname as his own, going so far as to outfit his clones in the clan's customary attire. He has come to loathe Sasuke Uchiha for murdering Itachi and bringing shame to the Uchiha clan. He wishes to avenge Itachi by killing Sasuke, and wants to capture Sasuke's daughter, Sarada Uchiha, to use her in pursuit of his goals.

Shin's abilities are still largely unknown. However, given that he was experimented on by Orochimaru and survived, it stands to reason he is very powerful. To which, he was shown calmly engaging the highly skilled Sasuke Uchiha in battle, able to use multiple misdirections to nearly defeat the Uchiha, showing a very cunning mind as well. He seemingly only failed to defeat Sasuke thanks to a surprise attack from Sakura Haruno, who he later also nearly defeat shortly after recovering before Sasuke saved her as well. Shin possesses multiple fully-matured Sharingan implanted about his body. Because of his highly-adaptive body, Shin is able to maintain his Sharingan unhindered unlike most people not of Uchiha blood. At the same time, as all the Sharingan appear to be activated constantly, it can be assumed he has immense levels of chakra. With these eyes, he has heightened perception and is able to perform various complicated attack patterns. He also owns a mysterious creature with a Sharingan, and is able to share vision with it and others and can use his dōjutsu techniques through it as a medium. With his right eye, Shin is capable of using space–time ninjutsu, which he can create a barrier that instantaneously teleports himself and anything else within it to a location. Depending on the situation, he can manipulate the size and shape of the space affected. Through unknown means, Shin was able to awaken the Mangekyō Sharingan. Its pattern is a large circle around the pupil with three points. The same Mangekyō pattern is also reflected on all his Sharingan. His proficiency with this dōjutsu allows him to use his Mangekyō techniques without activating his Mangekyō form. Also with his right eye, he was shown to be able to telekinetically manipulate any tool he brands with a special mark. With it, Shin has shown very refined control, able to manipulate multiple weapons at once to attack his opponent from various angles and likewise able to perform surgery on himself. He is likewise able to manipulate his multiple targets together in unison for form a myriad of shapes for further versatility in battle. As a medical-nin, Shin displays advanced knowledge of human anatomy and surgery. Favouring scalpels in combat, Shin commonly uses his Mangekyō Sharingan's technique to wield the tools telekinetically, expertly striking key points on the body to inhibit movement. He can also use the dōjutsu to perform surgery on himself, allowing him to replace his injured vital organs by transplanting healthy organs from his own clones. Shin possesses a unique genetic make-up that will completely accept any new genetic material, be it tissue, organs or entire limbs, without a chance of rejection, allowing him to fully integrate it into his being. This same trait also made much easier for permanent and separate entity clones of him to be created. Shin is also shown to have great endurance. Despite being severely wounded by Sakura's chakra-enforced punches, he was able to survive long enough be treated with open surgery, which he performed himself while casually talking to the captured Sakura.