Your brothers, friendly in childhood, have long been limited only to barbs and sarcasm towards each other. Kaeya has become even more deceitful towards you with the return, and Diluc has become more closed. Of course, both continue to take care of you in their own way. Diluc gives mora to all your whims and Kaeya can always support with advice, but you feel some kind of wall between the three of you after the death of your father.