As Kakashi stopped at the door to the classroom (three hours later of course), he noticed a sound coming from inside.
Tk…tk…tk…tk…tk…tk…tk
If he had to guess, Kakashi would say that it sounded like a pencil being tapped against a desk. He was about to open the door when he heard a voice from inside.
"Naruto-baka! Stop tapping that damn pencil! It's been three hours!" said the shrill voice of a girl.
'Must be the Haruno girl'
The tapping then stopped. Kakashi heard a stressed "Thank you" from inside. He was about to open it again when he heard another sound.
Tktktktktktktktktktktk
Kakashi sweatdropped and quickly opened the door in order to prevent possible bloodshed. As he did however, he felt a strange rushing of air, and the next thing he knew, he was sitting at a desk in the room. Before he had time to register any of this, a fist connected with his face sending him into the adjacent aisle.
Regaining his bearings and getting to his feet, Kakashi saw a young girl, frozen in shock with her fist outstretched, having not moved since hitting him. Glancing over to where he was standing, he noticed a young boy with blonde-spiky hair standing at the door with a satisfied smirk on. Realizing he had just been the unwilling subject of a kawarimi, Kakashi spoke.
"Well, my first impression of you is…I hate you. Come to the roof" he then poofed away.