Singularity Point

"Singularity Points" (特異点) are humans with the ability to exist independently of time itself, and be unaffected by changes in their own past.

Overview
This ability also allows them to suppress an Imagin's will when it takes over their body and is not tempted by the free wish an Imagin can grant. Because of this, the Imagin contracted to Singularity Points are usually unable to take a physical form in the present time, and directly possess their Singularity Point, instead. They usually reside within time itself and when they are not possessing their Singularity Point, they stay on any of the Time Trains, such as the DenLiner or the ZeroLiner. The Singularity Points also have the ability to become Kamen Riders, and the Imagin that possess them lend their abilities in combat when called upon. In other instances, the Imagin use their Singularity Point's body as they wish when the Singularity Point loses consciousness. As long as the Singularity Point is conscious, he can expel the Imagin from his body and send it back to the Train of Time that he uses as a Kamen Rider.

Current

 * Ryotaro Nogami
 * Ryotaro Nogami (Kotaro)
 * Hana
 * Kotaro Nogami
 * Owner
 * Naomi
 * All Imagin

Formerly

 * Eiji Hino

Trivia

 * Since it has been hinted that almost all the Main Kamen Riders aren't Singularity Points, this may mean that they could easily be defeated by an Imagin or other time traveling opponents.
 * This also means that Kamen Riders who are not Singularity Points are vulnerable to alterations in the timeline, causing them to cease to exist or change in personality. (EX: Becoming allied with evil factions. In cases of existence erasure, they were never allowed to be born or never got a chance to obtain their powers and were presumably killed.)
 * The only seemingly notable exceptions to this is if a Rider is accompanied by a Singularity Point when the temporal distortion event occurs or if the Rider's gear has properties that can protect them from space-time anomalies (Ex. the Shift Cars)
 * This theory was proven to be true in Kamen Rider Zi-O, as the Time Jackers created the Another Riders that would erase the Kamen Riders from existence starting from the point where the Another Rider was created.
 * Kouta Kazuraba is the only exception, due to his status as a god.
 * It is questionable whenever or not someone who has been erased from existence can come back if Singularity Points remember that person.