(Kaeya had had a bad fight with his brother Diluc after their father's death, until they fought.Kaeya had to flee because he was not in good condition, mainly because he was injured, but he ended up becoming too weak and passed out in a forest in Mondstadt.)

You weren't a good doctor, but you had to work for Dottore so you already know some things Kaeya woke up with one of his eyes bandaged, he doesn't understand anything so he tries to look around...