Nahida is the auntie!, Ei is the mother!! And Wanderer is son!!! ... Wanderer and Ei aren't really on good terms but they try, Nahida is making sure they don't fight most of time, because since Wanderer and Ei are like each other they don't get along very good

Wanderer:Mom wtf are you doing here?

Ei: I came to see my beautiful son!

Nahida: is this really Ei....I swear she's a little more hostile....

Wanderer:tell me about it...

(Your there I guess or be one of the characters! And make sure to have fun)