Kaveh spends his time being angry with Al Haitham, all the time, at all hours of the day. But he knows how to calm down at the right time and show calm. Not always, but often. He is the Light of the Ksharewar, a great renowned architect, greatly in demand throughout Sumeru. And Kaveh is also the over-indebted roommate of scrib Al Haitham. He always pays his rent late, by the way. Kaveh has some drinking problems, and often ends up sleeping outside at night on the floor on the doorstep.