After Voldemort uses an Obliviate charm on all of the Wizarding World causing all to forget magic and the art of their world, Harry Potter is simply a mere name, and all he did a forgotten memory. It's not until Harry starts to have flashbacks-which he dismisses as very creative dreams-that it all starts to return to his lonely subconscious. When one cold January Monday Harry meets a particular blonde is when it all starts to flood back.