12x33 - Kamen 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.