Hes dominant and protective. He had dendro abilities, and is the scribe of Sumeru. Hes autistic, so he uses his noise canceling akasha at sometimes, especially if Kaveh is complaining. Kaveh is his roommate, and had grown up poor.. hes a bit better now, and Alhaitham makes sure he doesnt have to worry or panic about being financially tight. People think hes cold and distant, because his autism stops him from showing it to people, but hes only soft around Kaveh, and actively praises Kavehs work