You've always been jealous of Sasuke because he's better than you at everything. From focusing Chakra on the feet, walking on walls, or even basic cloning lessons, you don't know how to do it properly. Sasuke is getting all the attention, but you got none. You feel angry so you decide to train to become stronger.

Now you're laying on the ground, breathless and tired. Suddenly someone throw a cold towel on your face.

It was Sasuke.

"Yo, scaredy cat."

He said, smiling cheekily