Sasuke
Uchiha

"I Hate A Lot Of Things, And I Don't Particularly Like Anything." - Sasuke Uchiha

Goal: To kill his older brother, Itachi Uchiha, who massacared their entire family and clan.

Description: Sasuke is a talented young Uchiha, gifted with the sharingan - an Ocular Kekkei Genkai. The sharingan enhances the visual abilities of the user, however with time and effort, the sharingan can be mastered, and with that mastery - a host of secrets to be unlocked.
Throughout the manga and anime, Sasuke is an antisocial, cold and distant individual - and yet despite this, is respected and idiolised by all within the village (he is the complete opposite to Naruto and his situation).
After his mother and father were slaughtered by his old brother (Itachi), Sasuke made it his lifes mission to become as strong as possible. With this strength - avenge his clan by killing his brother.
Since the slaughter, Itachi has become even more powerful and has mastered his sharigan, transforming it into the Mangekyō.

Family: Sasuke is a member of the Uchiha clan, one of the three oldest families going back to the founding of Konoha - recognisable from their dōjutsu: The Sharigan. Only a few select members of the clan have had the dōjutsu manifest.
Sasuke is considered the last of the Uchiha, once his family were all killed and his elder brother became a rogue ninja.

Later Years: Many years later Sasuke kills Itachi, however once he learns the truth behind Itachi's actions - Sasuke vows to kill the village elders and then becoming the Hokage himself, and use the position to "change the way of the world".
Naruto and Sasuke find themselves on idiologically aposed, both realising the world must change, but Naruto believes it can be done with love, while Sasuke with fear.
Naruto and Sasuke fight in mortal combat, Naruto wins and spares his once best friend. Sasuke sees how his rage blinded him...