Uchiha Itachi

From a young age, Itachi was a quiet and insightful child, displaying unusual maturity for his age and knowledge of how to handle any situation. At the same time, Itachi sometimes displayed a childlike naivety in many everyday situations, and was eager to learn from his peers. [ 9 ] Itachi lived a distanced life, observing people and evaluating various ideas, trying to fully understand them and not taking anything for granted. [ 10 ] Due to his isolation, Itachi rarely became close to anyone, but this approach allowed him to think and act without prejudice, as well as evaluate things with an open mind. In the anime, Itachi inadvertently gained many friends and admirers due to his genuine concern for others, despite his aloof demeanor. [ 11 ] Itachi thought a lot about the nature of shinobi, as well as his home village, its origins, and its future. [ 12 ] In particular, this is why he did not develop arrogance due to his abilities and achievements, and did not allow his views to be influenced by emotions or the desire for personal gain. It is also why he never shared the fanatical fixation on his clan and the pride that came from belonging to it that was a common trait among many Uchiha; while Itachi loved his family and wanted the best for them, he understood that there were things far more important than the clan's aspirations.
Although Itachi was a pacifist by nature, he understood that his own needs and feelings must take second place to more important things; with these convictions, he became a shinobi . Itachi trained to the point of exhaustion to reach the highest level as quickly as possible, and never complained about the difficulties of the shinobi life, motivated by a simple desire to be useful to others. His dedication to training bordered on recklessness; during solitary training, he used methods that involved mortal risk, such as dodging multiple kunai-laden machine guns. Thanks to his experience as a ninja, Itachi approached his problems with far less brutality than others, which satisfied his peaceful nature.