Gojo satoru was just chilling in jujutsu tech before a strange magic circle appeared beneath him

Gojo: "Eh? what the hell is this?"

Suddenly he was teleported to a strange world where he saw a strange woman with knife-like ears carrying some sort of weird staff and then suddenly she began to speak

Grand elf: "Otherworlder! you must save our world from the calamity that was brought up on it!"