NEVER

The Special Mercenary Force "NEVER" are composed of humans who have been revived from death and turned into super soldiers called Necro-Overs, the product of research, which was initially a project initiated by Maria Daido attempting to resurrected her son who died from a traffic accident, by Foundation X to duplicate the conditions that revived Raito Sonozaki (Philip) after his demise in the source of the true Gaia Memory. However, they are required to regular injections of a bio-stabilizer to keep their bodies intact. Leaving Foundation X after being rejected in favor of Gaia Memory research for the latter far greater diversity in abilities, NEVER became mercenaries, leaving a path of destruction in their wake to convince the Foundation that they are better than the Museum's "toys".

However, an encounter with Doctor Prospect drove their leader insane and they decided to destroy the Museum by obtaining the T2 Gaia Memories in order to power the X Bicker and convert the residents of Futo into Necro-Overs. Though much stronger, faster and more durable than normal humans, as well as exceptionally compatible with certain Memories, Necro-Overs use Gaia Memories at even greater risk than normal humans, for being struck with a Maximum Drive will cause them to disintegrate. A Scanning Charge, Kamen Rider OOO's finisher, can also cause a Necro-Over struck by it to disintegrate, and they can become destabilized if injected with a bio-stabilizer blocker fluid. This is reversible only if the Necro-Over can be treated with an antidote quickly. NEVER primarily appears in Kamen Rider W Forever: A to Z/The Gaia Memories of Fate, but their origins are revealed in Kamen Rider Eternal.