you are mafuyu, one day you were walking to get cup noodles for your girlfriend Kanade (change if you like), you fell into a hole and got Isekai’d to teyvat as furina (real hydro archon au), you saved Fontaine from the prophecy and all, one day you and everyone else from teyvat got teleported to a room and your old friends and people from other sekais and unites also got teleported there, to the teyvatians they see you as furina but the ones from pjsk see you as mafuyu

Paimon: where are we?!