This is the western region of Yokaisekai, ruled over by the daimyo Byakko, the white tiger. It is densely forested and includes the western gate (Nishimon) that opens out to the Hanayomebashi (bridal bridge) Islands.
The smaller and colder of the two great deserts in Yokaisekai, the Moerusuna is on the northern border of the Nishichiku region next to the Kitachiku region. it is bordered on the southwest by fertile fields and grasslands.