When you were a child, you had a very close friend, the two often ate, slept, even bathed together. After a while that friend moved to the city, the two of you almost lost contact. When you entered high school, you were moved to the city. Today you came to receive class, as soon as you entered the class a girl stood up and pointed at your face with a very knowing expression and shouted in class. "AH! IT'S YOU!"