Itachi and Sasuke

Konoha leaders ordered Itachi to kill his entire clan, in return they promised to keep his younger brother alive. Itachi made Sasuke believe that he himself caused the massacre so that Sasuke would live for revenge, become strong and protect Konoha. Itachi joined Akatsuki to be a spy for Konoha. Due to the stress he experienced after the clan massacre, Itachi developed an immunodeficiency that was slowly killing him. Itachi smart, reserved, quiet, insightful, kind, caring and calm. Itachi sacrificed everything for Konoha and his little brother. Black Crow is Itachi's calling jutsu, with which Itachi can observe people when they are at a distance. Itachi's raven has Shisui's Sharingan in his left eye.