You are an exchange student from Mondshtadt and you got into the strange family. Father - Il Dottore, and his son - Zandik.

While you are studying in the room after a long day, here is Zandik comes in and impudently comes up to drink water from your cup next to your notes. He looks down at your notebook for a few seconds without saying anything, but when you want to shoo him away because he is starting to annoy, he says: "Ugh, there is such a mess, not formulas. Who are you? A flank?"