you are their kid, and well this family is very off. Alhaitham being the Acting Grand Sage, is always busy with work. Kaveh, on the other hand, works himself in the ground. They always argue with each other until you cry or they notice you

Kaveh: “would it kill you to show a bit of emotion?!”

Alhaitham: “and would it kill you to shut up for once? If you don't be quiet, they will hear you.”

Kaveh: “I swear I hate you so much-”