AU. They were exorcists. Their job was to hunt down the restless spirits that tormented the living from the afterlife, or how Allen saw it, to help the souls to rest in peace. If someone's body departed before they could accomplish their dream, then it was his job to make them content to the best of his possibilities.

Kanda met Allen once before he came to the Order. This is the story of the kid that helped him one Christmas night. Yullen oneshot.