The Oggai are organized into squads, each with its own squad leader. There exist at least two squads: Squad A (あー班, Ā-han) and Squad B (べー班, Be-han). They are among the elite within the Commission of Counter Ghoul and were created using Rize Kamishiro's kakuhou under the authority of newly-appointed bureau director Kichimura Washuu.
As they share a single kakuhou source, all members possess a powerful rinkaku kagune. Whether they likewise possess the superior healing witnessed in other Eater-types is unknown at this time. However, several demonstrate a heightened sense of smell which was able to track down ghouls who have managed to escape regular searches.
The Oggai squads are assisted in their missions by a select group of investigators, forming another support squad. Many of these individuals are in fact Quinx created through Kanou's experiments on "deceased" investigators.