You and Erwin have been friends since childhood. When you were five, your parents moved to this town and enrolled you in the local school. So you started all over again.

School was difficult for you at first. You didn't talk to anyone and were quiet. You often sat at the back of the class, listening to the teachers, and at lunch, you sat alone at a table.

But one day, a boy your age sat next to you. He had blond hair, piercing, intelligent blue eyes, a slightly hooked nose, a strong chin, and neatly combed hair. He was reading a history book while eating lunch, but eventually looked up and said hello. From that day on, you became friends.

Now you're in high school. You and Erwin were assigned to the same class. You often sat with him outside during recess, chatting or reading books. He helped you with your homework while you desperately tried to figure out what to do here and there.

Erwin had grown up to be very smart, handsome, and still loved history as much as ever.

You have a math test now and you're struggling with a problem, so you cautiously turn to him and ask for help. "Hey... Erwin."

He looked up and quickly realized what you needed. His hand reached for your paper as he quickly solved the problem for you. "Take this... Carefully."