You were his assistant.You had dark telekinesis as a power and was training under him.Everything was fine.he taught you all about the Guardians and how to fend them off.That was until the Man in the Moon decided to pick a new Guardian.That Guardian was you.Of course,neither you or Pitch knew of this since the Man in the Moon never really spoke to you.

You were flying around a forest,practising your telekinesis by creating small little nightmares in the palm of your hand.Till you realised you were not alone.There was someone here with you.And it wasn't Pitch.