Story
Thirteen Card Decks (カードデッキ Kādo Dekki?) were created for thirteen Kamen Riders. They make Contracts with monsters from the mysterious Mirror World (ミラーワールド Mirā Wārudo?), a parallel dimension opposite to our own in which only the Kamen Riders can exist. The Riders draw on their monsters' strength in exchange for feeding them the life force of the creatures they destroy. The creator of the Advent Cards (アドベントカード Adobento Kādo?) has only one rule: that there can be only one Kamen Rider. The others must be killed, and the sole victor will be granted a single wish, which leads to a conflict known as the Rider War.
All over the city, innocent people are being mysteriously abducted, never to be seen again. During his investigations of these incidents, Shinji Kido – an intern at the online news service ORE Journal – discovers one of the Advent Card decks at an apartment where every reflective surface has been covered by newspaper. He is soon sucked into the Mirror World, discovering the terrifying truth behind the disappearances: people are literally being pulled through mirrors by the monsters of the Mirror World so that they may feed. He is about to be killed by a powerful dragon named Dragredder when he is saved by Kamen Rider Knight: Ren Akiyama. Ren seeks to win the Rider War at all costs. He works with a young woman named Yui Kanzaki, who seeks her missing brother: the master of the Rider War, Shirō Kanzaki. Seeing Ren's strength, Shinji enters the Rider War not for the prize, but so that he may protect innocent people from the threat of the Mirror World, and stop the senseless fighting between the Kamen Riders. With Dragredder as his Contract Monster, he becomes Kamen Rider Ryuki.
Episodes
- The Secret Story's Birth (誕生秘話 Tanjō Hiwa?)
- Giant Spider Counterattack (巨大クモ逆襲 Kyodai Kumo Gyakushū?)
- School Ghost Story (学校の怪談 Gakkō no Kaidan?)
- School Ghost Story 2 (学校の怪談２ Gakkō no Kaidan Tsū?)
- The Monster's Antique Store (骨董屋の怪人 Kottōya no Kaijin?)
- The Mysterious Rider (謎のライダー Nazo no Raidā?)
- A New Species is Born? (新種誕生？ Shinshu Tanjō??)
- The Fourth, Zolda (４人目ゾルダ Yoninme Zoruda?)
- Shinji's Arrested!? (真司が逮捕！？ Shinji ga Taiho!??)
- Knight's Crisis (ナイトの危機 Naito no Kiki?)
- The Mysterious Empty Train (謎の無人電車 Nazo no Mujin Densha?)
- Ren Akiyama's Lover (秋山蓮の恋人 Akiyama Ren no Koibito?)
- That Man, Zolda (その男ゾルダ Sono Otoko Zoruda?)
- Revival Day (復活の日 Fukkatsu no Hi?)
- Iron Mask Legend (鉄仮面伝説 Tekkamen Densetsu?)
- Card of Destiny (運命のカード Unmei no Kādo?)
- The Grieving Knight (嘆きのナイト Nageki no Naito?)
- Jailbreak Rider (脱獄ライダー Datsugoku Raidā?)
- Rider Gathering (ライダー集結 Raidā Shūketsu?)
- The Traitorous Ren (裏切りの蓮 Uragiri no Ren?)
- Yui's Past (優衣の過去 Yui no Kako?)
- Raia's Revenge (ライアの復讐 Raia no Fukushū?)
- Changing Destiny (変わる運命 Kawaru Unmei?)
- Ouja's Secret (王蛇の秘密 Ōja no Himitsu?)
- Combining Ouja (合体する王蛇 Gattai Suru Ōja?)
- Zolda's Assault (ゾルダの攻撃 Zoruda no Kōgeki?)
- The 13th Rider (１３号ライダー Jūsangō Raidā?)
- Time Vent (タイムベント Taimu Bento?)
- Marriage Interview Battle (見合い合戦 Miai Gassen?)
- Zolda's Lover (ゾルダの恋人 Zoruda no Koibito?)
- The Girl and Ouja (少女と王蛇 Shōjo to Ōja?)
- Secret Data Gathering (秘密の取材 Himitsu no Shuzai?)
- The Mirror's Magic (鏡のマジック Kagami no Majikku?)
- Friendship's Battle (友情のバトル Yūjō no Batoru?)
- Enter Tiger (タイガ登場 Taiga Tōjō?)
- The Battle Ends (戦いは終わる Tatakai wa Owaru?)
- Sleep is Awakening (眠りが覚めて Nemuri ga Samete?)
- Targeted Yui (狙われた優衣 Nerawareta Yui?)
- A Dangerous Sign (危険のサイン Kiken no Sain?)
- Memories of an Older Brother and Younger Sister (兄と妹の記憶 Ani to Imōto no Kioku?)
- Imperer (インペラー Inperā?)
- Room 401 (４０１号室 Yonhyakuichigōshitsu?)
- The Hero Fights (英雄は戦う Eiyū wa Tatakau?)
- Glassy Happiness (ガラスの幸福 Garasu no Kōfuku?)
- The Twentieth Birthday (２０歳の誕生日 Hatachi no Tanjōbi?)
- Tiger's a Hero (タイガは英雄 Taiga wa Eiyū?)
- Determination of Battle (戦いの決断 Tatakai no Ketsudan?)
- The Final 3 Days (最後の３日間 Saigo no Mikkakan?)
- Granting a Wish (叶えたい願い Kanaetai Negai?)
- A New Life (新しい命 Atarashii Inochi?)
