Shin Uchiha

**Shin Uchiha** (うちはシン, *Uchiha Shin*) was a former test subject of Orochimaru. After developing a fixation on the Uchiha Clan, more specifically Itachi Uchiha, he took the Uchiha name for himself and severed ties with Orochimaru, taking his "sons" with him.

## Background

Shin was one of Orochimaru's experimental test subjects and followers, and possessed a unique genetic make-up allowed the Sannin to perform and succeed in various genetic experiments, including cultivating permanent clones. Harvesting Shin's teeth and nerves ultimately allowed Orochimaru to uncover the many secrets of genetics. After his death at the hands of his own sons, he was resurrected by the Mysterious Force and has been living under the radar since then.

At some point Shin became obsessed with the Uchiha clan, especially Itachi. 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.

## Personality

Shin's worldview was rather warped. He triumphed scientific advancement and was a firm believer of survival of the fittest and natural selection, believing that living organisms were slaves to their genes and existed only to survive by passing on their strongest traits to the next generation. In addition, believing that might made right, viewing conflict as a necessary component of mankind's evolution, which he believed would cause the human species to stagnate and ultimately become extinct. Likewise, though he referred to his clones as sons, he had 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 demonstrated this lack of emotion by using one of his clones as a human shield, then harvested the clone's vital organs to surgically replace his own, killing the clone in the process. In battle, Shin had no sense of honour, using underhanded tactics to win as seen from taking advantage of Sasuke's fatherly instincts and attacking Sarada, prompting Sasuke to shield her with his body.

Though typically logical, he had an obsessive fascination with the Uchiha and its history, particularly towards Itachi. Because of this, he adopted the Uchiha surname as his own, going so far as to outfit himself and his clones in the clan's customary attire. He had come to loathe Sasuke Uchiha, blaming him for the death of Itachi and bringing shame to the Uchiha clan, wishing to "avenge" Itachi by killing Sasuke. So delusional, he completely disregarded all of Itachi's own crimes against the Uchiha, rather believing that Itachi's actions were all justified and wished to "continue" Itachi's work. However, Sasuke remarked that Shin didn't understand anything about Itachi.

His overconfidence lead him to overestimate his control of situations, unaware of the actions of his clones creating clones of their own, and ultimately killed by them, based on his own belief of survival of the fittest.