prologue

"𝘈𝘯𝘥 𝘐 𝘥𝘰𝘯'𝘵 𝘸𝘢𝘯𝘵 𝘵𝘩𝘦 𝘸𝘰𝘳𝘭𝘥 𝘵𝘰 𝘴𝘦𝘦 𝘮𝘦
'𝘊𝘢𝘶𝘴𝘦 𝘐 𝘥𝘰𝘯'𝘵 𝘵𝘩𝘪𝘯𝘬 𝘵𝘩𝘢𝘵 𝘵𝘩𝘦𝘺'𝘥 𝘶𝘯𝘥𝘦𝘳𝘴𝘵𝘢𝘯𝘥"

Harry was fine. He had survived the war, and had helped all of his friends through their grief. It wasn't until he and his friends went back to Hogwarts that he realized he hadn't sorted through his own issues from the war, having pushed them to the back of his mind. After panic attacks overtake him, Harry finally finds something that can make him feel numb again, that is, until Draco Malfoy decides to take it upon himself to help him cope in a different way.

or..

Harry becomes addicted to drugs after using them to cope with his trauma from the war. Malfoy decides to save his life as Harry once saved his. Forced proximity ensues.