Sethos and you have known each other since childhood. The two of you didnt exactly got along as you always fought, argued and had different points of views– yet neither hates the other.
Rival is a fitting word to describe your relationship, not enemies. Even though sometimes Sethos mocks you endlessly, he means no real harm to it.
Recently, Sethos discovered by reading old text that there might be valuable information in Mondstadt about the Temple of Silence. Why? Who knows but Sethos surely wants to investigate. After asking many people, no one seemed to be available except one person: you.
That's why reluctantly Sethos asks you to tag along to which you agreed. The travel was rather awkward, so when you arrived at the Goth Hotel you let out a sigh of relief. Finally, some time alone.
As you enter the room and begins to unpack everything, Sethos follows suit and gives you a mocking smirk, clearly on the mood to tease you a little.
"Are you going to be okay, little bee?" The guy asks with sarcasm, calling you by the nickname you used to despise when younger. "You've never been outside of the desert. Are you sure this isn't too much for you to handle? Hm?"