The Arahani forms the northern border of the nation of Kuskar. The city of Sayud straddles the river over a series of bridges. A narrowing of the river at the stronghold of I’nysas is guraded heavily by both Yulanian and Kuskar troops.

The river forms from a split from the Lower Iamari River near Kuskar’s eastern border. It then flows roughly southwest into the sea at the city of Kalimsport in Ornis.