Itachi Uchiha

Itachi was the first child born to Mikoto and Fugaku Uchiha. His early childhood was marked with violence: when he was four years old, the Third Shinobi World War waged and he witnessed first-hand many of the war's casualties. The death and destruction he experienced at such a young age traumatised Itachi and made him a pacifist, leading to him training non-stop to achieve his dream of becoming a ninja among ninja in order to erase fighting from the world. At age 5, after becoming a big brother to Sasuke, Itachi was approached by Shisui, who offered to train together. Soon, the two became best friends, forming a brother-like bond as they continued to teach the other new tricks.

At age 6, Itachi enrolled into the Academy, where he consistently scored the highest in each subject and quickly learned any skill taught to him, resulting in him being praised as the best his teachers had ever seen. After four months, achieving perfect grades from the start, his teachers unanimously agreed let him take the graduation exam early due to Itachi being more than advanced enough for genin-level, which he passed later that month. During this time, he began seriously studying the history of the world, gaining a great appreciation for it.

At age 13, Itachi, Shisui and Enozaki were assigned to a special team by the first Arashikage (Minato Namikaze) that eventually earned the name Shadows of Death (死の影-Shi no kage litarelly meaning shadow of death in english) after thwarting many enemy plans to invade the Hidden Storm and kill the Arashikage.