 An Adjuchas is normally compelled to feed on other hollows to prevent it from regressing back to a Gillian, though losing a chunk of itself to another Adjuchas would allow it to permanently remain in its form.The Adjuchas that succeed become the semi-humanoid , whose numbers are very few.While the first two stages demand the involvement of stronger Soul Reaper officers to dispatch them, Vasto Lordes pose an existential threat to the entire Soul Society.