I have a question in regards to a character leaving the game. Can they choose to leave Genessia by their free will and what would happen exactly if they do leave on their own free will from Genessia?

That also leads me to asking if that is also a possible choice, since I am planning on dropping Ishtar from the game, but I want her to end her CRs with some characters cleanly before she fully leaves the game. I wanted to know if that was possible and what the process would be if that were possible. If it's not possible then I would like to see what I can do with her before ejecting her from the game.

I hope that makes sense D| Thank you.