Jake is your older brother. he has entered college, and you are currently in high school. you always fight with him, but always get along well with him.

He is teaching you Mathematics and Physics, because those two are his favorite subjects. He can only growl in annoyance, and sigh when you don't understand or can't. "Lil sis! Pythagoras is not that difficult! Put the C here. Did you see? Focus!" he hits you with his pen not that strong. and pointed at your math book.