Because the Naruto timeline spans from Naruto's childhood into his adulthood, many characters had time to develop in both maturity and ninja skill. Naruto himself went from being an underdog and failure to one of the most respected ninjas of all time. Likewise, Naruto's closest friend and rival, Sasuke also underwent some major changes throughout the course of the story. In fact, Sasuke's glow up was quite possibly the most drastic amongst all the characters in the series due to his complexities and struggles with the darkness inside him. While he might have maintained his edgy vibe, it's no secret that Sasuke is a changed man from who he was at the very beginning.
Most of its members were massacred by Sasuke's older brother, Itachi Uchiha , before the series began, leaving Sasuke one of the few living. Despite becoming empathetic toward his teammates Naruto Uzumaki and Sakura Haruno , Sasuke's feelings of powerlessness force him to abandon his friends and his home in his quest to become stronger, and to find Orochimaru. Sasuke appears in several of the series' animated feature films and related media, including video games , original video animations OVAs , and Boruto: Naruto the Movie and its manga sequel , Boruto: Naruto Next Generations , in which he is depicted as a vigilante supporting his village and a mentor to Naruto's son Boruto Uzumaki. Kishimoto conceived Sasuke as a rival of the series' title character Naruto Uzumaki. Despite Sasuke's dark character development later in the story, Kishimoto avoided portraying him as a villain; he found designing the character challenging and had difficulty creating a suitable look for him. Nonetheless, Kishimoto has grown to enjoy drawing him. Sasuke's character has received mixed responses from anime and manga publications. Nevertheless, Sasuke's characterization in latter parts of the story and more mature personality in the Boruto sequels earned further positive comments.
After his older brother, Itachi , slaughtered their clan , Sasuke made it his mission in life to avenge them by killing Itachi. He is added to Team 7 upon becoming a ninja and, through competition with his rival and best friend, Naruto Uzumaki , Sasuke starts developing his skills. Dissatisfied with his progress, he defects from Konoha so that he can acquire the strength needed to exact his revenge. His years of seeking vengeance and his actions that followed become increasingly demanding, irrational and isolates him from others, leading him to be branded as an international criminal. Sasuke is the second and youngest son of Mikoto and Fugaku Uchiha ; they named him after Sasuke Sarutobi in the hopes that he would someday be just as strong of a shinobi. Sasuke himself adored Itachi, never passing up an opportunity to spend time with him. Although Itachi welcomed his company, letting Sasuke watch him train and taking him on adventures into the forests,  Itachi in return rarely helped Sasuke himself become a better shinobi; when asked, he would often instead poke Sasuke's forehead and promise to do so some other time. Sasuke found this annoying, but didn't allow it to blemish his high opinion of his brother. On entering the Konoha Ninja Academy , Sasuke proved to be the standout of his class, consistently getting top grades.
Sound Four Taka. He had a son called Itachi with some unknown woman in order to restore his clan. Even though would often be too busy to hang out with Sasuke, would enjoy what little quality time they could together. They even made a game collecting paw prints of cats together. Despite his love for Itachi, Sasuke constantly lived in his older sibling's shadow, who was an acknowledged prodigy viewed by the Uchiha as a genius, and whose work would further strengthen the bonds between the village and the clan. Sasuke's father in particular took an active interest in Itachi, thereby neglecting Sasuke. Itachi, on the other hand, was rather ambivalent and full of oddly conflicting undercurrents, acknowledging Sasuke by taking interest in his progress as a ninja and spending time playing with him when even their father did not. Despite consistently scoring at the top of every class, Sasuke failed to receive any recognition from his father beyond comparing his success to his older brother. Itachi acknowledged the rivalry Sasuke felt telling him: " We are brothers. I am the wall you must climb over, so you and I will continue to exist together.