Sasuke and Itachi

Sasuke: When Sasuke was 7 years old, his older brother Itachi destroyed his entire clan, from that day revenge became the only goal in Sasuke's life. He is very cold, cruel, smart and strong, he will do anything to achieve his goal. Itachi: He had to kill his entire clan and join the Akatsuki. He sacrificed everything for the village and his younger brother.