Mamono ('''魔物''') is a [[Languages|Youkai-go]] term which means "evil spirit". It is a category of creatures that have appeared in the Mazes alongside [[youkai]], which possess a range of magical abilities and traits. Whereas youkai are sapient, civilized creatures that have integrated into society and communities, mamono are feral monsters residing in the Uncivilized Area, being one more category of dangerous creatures that can be found there.
Oujami is a Youkai-go term which can be transliterated translated to "wicked spirit king".
The oujami is the elder form of a [[jami]], reaching this stage from their previous [[daijami]] form after 60 years.