Chapter 21: Shine the Best, Full Color.

is the twenty-first episode of Kamen Rider Saber. It features the debut of the X Sword Man Wonder Ride Book, and its associated form, Saikou X Sword Man, as well as Saikou X Sword Man Powerful.
==Synopsis==
Mei warns Touma of all of the recently missing people and after immediately heading out towards the scene, Touma learns that there were many more victims besides just Yuki and Shingo alone. Touma and Mei are saddened by the fact that there were people who they couldn't save. Meanwhile, at the Southern Base, Tetsuo declares that he will bring the Sword of Flames back to the guild, staking his pride as a swordsman on the line in order to prove his loyalty to the guild. He recalls feeling something akin to when his grandfather told him about the myths of the Seiken. Not to mention, Storious tries to create a special Megid to steal the Seiken from the swordsmen. A new Megid is created by harnessing the components of the three book genres: Mythical Creatures, Living Animals, and Fairy Tales. The battle between the swordsmen and the threat of a new Megid are quickly gaining on Touma. Around that time, Yuri, who was told of the possibility of recovering his swordsman's body, was paying a visit to Tassel.
==Plot==
==Cast==
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*Narrator, Seiken Swordriver, Wonder Ride Books: 
*Seiken Swordriver: 
===Guest Cast===
*Tetsuo Daishinji (Child): 
*Tetsuo Daishinji's grandfather: https://www.kamen-rider-official.com/collections/22/22
*: MIO
*: YAE
*Principal: 
===Suit Actors===
*Kamen Rider Saber: 
*Kamen Rider Slash: 
*Kamen Rider Saikou: 
*Charybdis Megid: 
*Golem Megid: 
*Ahiru Megid: 
*Hanzaki Megid: 
==Forms and Collectibles Used==
===Wonder Ride Books===
*Book Used:
**Saber
***Brave Dragon, Storm Eagle, Saiyuu Journey
**Slash
***Hanselnuts to Gretel
**Saikou
***Kin no Buki Gin no Buki, Wonder World Story of Kogouken Saikou, X Sword Man
*Form Used:
**Saber
***Brave Dragon, Crimson Dragon
**Slash
***Hanselnuts to Gretel
**Saikou
***Kin no Buki Gin no Buki, X Sword Man, X Sword Man Powerful
==Errors==
*When Touma transforms into Crimson Dragon, the Storm Eagle and Saiyuu Journey Wonder Ride Books miraculously appeared on the Seiken Swordriver when he unsheathed the Kaenken Rekka.
==Notes==
*As part of Super Hero Time, this episode aired alongside episode 42, .
*Closing Screen Wonder Ride Books
**Kamen Riders: Saikou
**Wonder Ride Books: X Sword Man
* Wonder World Text Translation Page
** Kamen Riders: Saikou
** Wonder Ride Books: Wonder World Story of Kogouken Saikou, X Sword Man
Saber EP21 Kougouken Saikou Eyecatch B.png|Wonder World Story of Kogouken Saikou (Story Page)
Saber EP21 X-Swordman Eyecatch.png|X Sword Man (Story Page)
* Count at episode end
** Wonder Ride Books in Saber's possession: Brave Dragon, Storm Eagle, Saiyuu Journey, King of Arthur, Dragonic Knight, Diagospeedy
** Wonder Ride Books in Blades' possession: Lion Senki, Peter Fantasista, Tenkuu no Pegasus, King Lion Daisenki, Lamp Do Alangina, Needle Hedgehog, Tri-Cerberus
** Wonder Ride Books in Buster's possession: Genbu Shinwa, Jackun to Domamenoki
** Wonder Ride Books in Kenzan's possession: Sarutobi Ninjaden, Kobuta 3Kyoudai
** Wonder Ride Books in Slash's possession: Hanselnuts to Gretel, Bremen no Rock Band
** Wonder Ride Books in Saikou’s possession: Kin no Buki Gin no Buki, X Sword Man
**Wonder Ride Books in Reika Shindai's possession: Jaaku Dragon, Jaou Dragon
*This episode reveals that Yuri once wielded Ankokuken Kurayami along with his Kougouken Saikou.
*During the beginning of the episode, Touma narrates a portion of Sword of Logos' history. The scenes are accompanied by illustrations drawn by Japanese artist Shoma Muto,https://twitter.com/cyq_joker/status/1358211624398540800 who had previously drawn storyboards for Kamen Rider Zero-One.
*This episode reveals that Tetsuo Daishinji's family line created the Seiken that were used by Sword of Logos's swordsmen.
*Tetsuo Daishinji defects from the Sword of Logos in this episode.
*The Wonder World Story Wonder Ride Books also make brief appearances in this episode.
==External links==
*TV Asahi's official episode guide for 最高に輝け、全身全色（フルカラー）。
*KR Official's official episode guide for 最高に輝け、全身全色（フルカラー）。
*JAE's official episode guide for 最高に輝け、全身全色（フルカラー）。
==References==
Category:New Form Episode