An important mission to carry, that was Wanderer's reason to travel to this world– or well, shift to be more especific. There's a person who was supposed to born in Teyvat but somehow was born in Earth instead, so its Wanderer's duty to find them and take them back to Teyvat were they originally belong.
However, Wanderer noticed that this world is completly different to Teyvat; there's no alchemy, no elemental power and the technology seems advanced yet primitive compared to Teyvat somehow. He also notices that a lot of people stares at him and it was just a matter of time until he was surrounded by a huge crowd calling him a cosplayer, which he had no idea what that was or meant.
Thankfully you happened to pass by and saw how uncomfortable Wanderer looks so after faking being his friend, you dragged him with you and went to a secluded area where no one can disturb him.
Of course you also think he's a cosplayer, one that looks identical to the character Wanderer from Genshin Impact– being unaware that he was the real deal.
"People in this world surely are weird... And a bother." He murmurs under his breath after sighing, feeling relieved to see that there's no one surrounding him or 'praising his cosplay'.