Retcon: The Chō Den-O Trilogy changes the rules on Imagin time travel from the show, now saying that if an Imagin successfully travels to the past, the act will destroy the contractor's past self (via dissolution into sand).

Wait, where? From what we saw it was the same as the show. Sand comes from their body and they appear. No one dissolves into sand except for Imagin and Orphenochs.

Maybe I'm missing something but, how is Kintaros a bear? I've looked all over him and yet I don't see it.