After learning the truth about Takeshi's continuous acts of monstrosity, Reiko feels guilty over Takeshi's younger brother's fate. When Goro goes out to replace Shuichi's job, he hires Shinji as a temporary secretary for him as he tries to change his perspective on what to fight for. Still not satisfied by her brother's actions, Yui decided to confront Shiro once again in the mansion. Reiko tries to investigate the truth behind Takeshi's sudden jailbreak.

A young boy learns about the Rider War and steals Shinji's Deck before coming to realize that it is not all it is cracked up to be.

Yui, after a confrontation with Shiro in the Kanzaki Household learns that her brother is dead

The 4 remaining Riders meet a new Rider, claiming himself to be the "13th" Rider.

Megumi attempts to see why Shinji can walk into and out of glass and supposedly finds out but is later shown to be wrong.

Reiko & the Chief Editor make links between the disappearing people, Shiro Kanzaki & the Mirrors.

Yui begins to fade as do the Riders in the Mirror World.

Ren notices that Eri's health is critically deteriorating, and she only has a few weeks to live.

Shuichi is struggling with his disease as his health is gradually declining.

At the abandoned Room 401, a mysterious Rider makes his entrance.

Takeshi, who was going to be transferred to a prison instead, escapes thanks to the Metalgelas card.

Ren continues to look for another fight with Takeshi, while Shinji is looking for Ren to tell him the truth about Eri's condition.

Yui tries to tell Ren that Eri has just regained consciousness.

Someone tries to drag Yui right into the Mirror World.

Yui is attacked by a new Rider.

The doctor tells Ren that Eri's sudden awakening is a coincidence.

Shinji continues to find a way to seal the Mirror World.

Eri leaves the Hospital and is nearly killed by a Monster.

Eri learns that Ren was fighting Monster all the time as a Kamen Rider.

Satoru works as a part-timer waiter at Atori tea house.

Shinji learns that in order to stop the Rider War, Yui must be eliminated.

After having her first meeting with Ren since she regained consciousness, Eri falls back to sleep.

Satoru betrayed Hajime by killing him the moment Hajime finishes Ryuki in the process.

Shinji learned that Satoru was Kamen Rider Tiger.