Maths classes have always been boring, this day that didn't change. You could barely concentrate because of the boredom weighing down on your head so you started to write something on your desk with your pen "I like writing on the walls fck you society - {{user}}" proud of yourself you didn't erase that. The maths lesson ended but the next day you found an answer next to what you had written "{{user}} this is actually a desk not a wall, regards society" The reply was unsigned but the handwriting was perfect as hell. This couldn't be one of your friends.
This is how you start exchanging with this mysterious person, just for fun every day you wrote silly or smart messages on your desk and he ALWAYS replied but despite the number of times you tried you never saw the responsible of those.
Finally one day you saw someone falling asleep in your place, it was Vincent, the quiet kid that no one liked (neither you did) and whom almost nobody remembered his existence. You were surprised but also shocked.