Taimanin

Taimanin is a media franchise by LILITH. Originally starting as an eroge visual novel series, over time Taimanin has grown to include hentai OVA and live action JAV adaptations of the source material. While the main series is notorious for its extreme fetish content, since the release of Action Taimanin the series has also started seeing success as all-ages intellectual property.

Story
In a fantasy version of modern Tokyo, the world of Taimanin is split between the Human World and the Demon World. The Taimanin are a group of highly skilled ninjas who are tasked with fighting demons and corrupt organizations to maintain peace. The story is originally centered on Asagi Igawa and her fight to defeat her archenemy Oboro after she kidnaps Asagi's fiancé. The series has been called one of the most memorable eroge of the 2000s.