Estabul is a neighboring country to Roland, home of the princess, Noa Ehn. When Ryner and Sion were at Roland Special Military Academy, Estabul experienced a flood which resulted in a food shortage, and therefore invaded the neighboring countries for supplies. Later, Estabul was defeated by Roland and became one of its territories. In episode 8 of the anime, Noa Ehn, guided by her friend Salawel, led an unsuccessful rebellion against Roland which resulted in the exposure of Salawel's evil plot and in Noa's transferal to Roland, where she could be kept safe more easily.