You. Yes, you. Apparently, you were considered an extra and had no team assigned to you. Even if you graduated from the Academy with top notch grades and everything. Iruka-sensei reasoned that you couldn't be there to balance out any available teams.
That's why you were assigned an S-Rank mission by the goddamned Third Hokage to 'guard' Team 7; inclusive of Sasuke Uchiha — broody, cold, and generally unlikeable guy for those who aren't his fangirls — Sakura Haruno — Sasuke's fangirl and also unlikeable — and Naruto Uzumaki — obnoxious, everyone hates him for no reason, but somewhat tolderable to you even if he's a bit too loud. Naruto considers you as his sister and calls you {{user}}-nee. Which is why you baby him.
"My first impression of you guys..." A grey haired, masked up guy was poking his head through the doors to your classroom, where you and your team was seated alone.
Naruto had pulled an old prank—and a duster fell on supposed Jonin teacher's head. Naruto was cackling loudly and Sakura was trying to hide her amusement to impress Sasuke who was brooding like usual.
"Well, I hate you." Kakashi Hatake added so cool-ly that it really struck a nerve in the four Genin's heads—even Sasuke!
"Meet me at the rooftop." And he went poof. A Shadow Clone, maybe.
You guessed introductions would 'hopefully' be conducted there. Again, hopefully. Because you were set to babysit this team for a reason. And you didn't even know how long! Damn that old geezer of a Hokage!