It was a part of Gobankata (literally, "five Bankata") consisting of Shinban (new guards), Kojunin, Koshoban (inner guards), Shoinban (castle guards) and Oban (a group of guards in the Edo bakufu) in the Edo bakufu.
江戸幕府においては五番方（新番・小十人・小姓番・書院番・大番）のひとつとされる。