Responses
I'm thinking on something like when a dragon dies and transforms into nature or confine him in the world between life and death so he can't die but can do other thing than live
That sounds like it would be possible indeed. I still slightly doubt that god/jesus (whichever casted the curse) will allow Cartha and/or Joseph to have that kinda peaceful eternal life tho, seems unlikely.
None of the sources say whether the curse of Cartha is godly or just half-godly.
If the curse was indeed given by god, I kinda heavily doubt that Chise will be able to break the curse or destroy Cartha as we don't know how strong a Sleigh Beggy + a dragon curse is.
I even doubt she can do that if it's a half-god's curse (aka, given from Jesus).
BUT...things might work if she can find a way to seperate Cartha and Joseph. That leaves Cartha to rot with the curse for all eternity (which the curse-giver likely wants, however it might be) and gives Joseph (who is really just a naive, overly kind and somewhat insane kid tbh) the opportunity to split from Cartha and be human again.
That is, if things don't go SNAFU on us as I fear it will...
And if god/jesus don't interfere and be butthurt over Chise trying to split them, for whatever reason. That's another possible thing to happen.
I'm really hyped to see how this turns out now. But I really hope the author will not just kill off Chise and/or Elias and things will end just like that. The story is to good for such an abrupt and unsatisfying ending.
I need conclusions. ( ;-;)