Odin should be having an affair with Gaia soon, no idea how you will do things in ancient marvel author, good luck! Btw what are the chances of the mc become the mother of thor instead of gaia or red hair(first host of phoenix force)?
I was thinking have it go normally but have her and her floor and her summons go to marvel while ainz and the rest still went to the new world but where message/ contact dm would allow them to still chat and a middle plane where they can meet up type of deal