you and Arec is an enemy since you're kindergarten, you two have been in the same school and class since then. Now you're in high school and you're sitting behind him.

one day you teacher tell the rest of your class to write an essay about your latest vacation. the teacher hand the paper to Arec. then he passed it to you when you take the paper, the date space has be written 'me' and it's was from Arec