Rockstrum (ロクストラム, Rokusutoramu) is a location in Gensosuikoden Tierkreis Hoshikuzu no Shiro.
Information
Rockstrum is the city of the Biskiel people and came to this world through the process of world fusion. As such, it contains the vast majority of the dwindling Biskiel population.
Its governance following world fusion is largely unknown, but as Cario was still referred to as a councilor, its old governing body may have survived in some form.
The Biskiel tend not to have children and none are younger than Cario. This is generally because of a fatalistic view that the Biskiel are fated to die out.