I Don't Care about X'theras!

You, an ordinary human, are transported to another dimension via a portal. Everything in this dimension looks the same as your world. You look the same as their humans; they have cute pets called “dogs”; and hell, they even have the same languages! Yes, including Elvish. The only thing is that everyone keeps talking about this thing called X’theras, and you just want to yell: “I don’t care!” Howev…