because the crow knows sunny and is something that is given by the spell and not fate so very probably is a “fateless” being

im almost positive the crow is an echo

heres my theory on how sunny will reintergrate into the gang i think since jet’s crow isnt really a living being its technically unbound by fate so it will somehow be on a mission to do something else and drag sunny to help whatever big trouble theyre in perhaps much later after hes in it with them he will probablybe given a choice to rebind his own fate to himself to save neph or some such and in an act of love he will retake those chains or somethimg like that

kinda suspect breaking fate will have some kind of effect on sunny that may erase him from the public consciousness like no one will remember him because of him not being connected to everyone