THE DEFINITIVE GUIDE TO NARUTO

Naruto claims that Sasuke is like a brother to him and that He'll do just about anything to protect that bond. Sasuke vows to sever that bond, but acknowledges Naruto as an equivalent by Placing on his forehead protector. They go on buying and selling blows, with Naruto inevitably manifesting a fox-shaped cloak and Sasuke moving into his cursed sea