|This article is about a/an episode in Kamen Rider Ryuki.|
Determination of Battle (戦いの決断 Tatakai no Ketsudan) is the forty-seventh episode of Kamen Rider Ryuki. This episode finally reveals more darkest secrets about Kanzaki's siblings.
- On two separate occasions, Shinji is unable to destroy Ren even though he had found a reason to fight until his hesitation forcing him to refuse to fight.
- Shinji had to pretend to be cheerful, much to Ren and Yui's concern over Shinji's sudden overacting of joyfulness.
- Kitaoka collapses from his illness.
- Reiko returns from New York with the documents which contain the information about Shiro Kanzaki.
- Continuation from the previous battle, Shinji fights Ren once again.
- The multiplying Sheerghosts curl into a pool and later hatch into Raydragoons.
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- Shinji Kido (城戸 真司 Kido Shinji): Takamasa Suga (須賀 貴匡 Suga Takamasa)
- Ren Akiyama (秋山 蓮 Akiyama Ren): Satoshi Matsuda (松田 悟志 Matsuda Satoshi)
- Yui Kanzaki (神崎 優衣 Kanzaki Yui): Ayano Sugiyama (杉山 彩乃 Sugiyama Ayano)
- Shiro Kanzaki (神崎 士郎 Kanzaki Shirō): Kenzaburo Kikuchi (菊地 謙三郎 Kikuchi Kenzaburo)
- Shuichi Kitaoka (北岡 秀一 Kitaoka Shūichi): Ryohei (涼平 Ryōhei)
- Goro Yura (由良 吾郎 Yura Gorō): Tomohisa Yuge (弓削 智久 Yuge Tomohisa)
- Takeshi Asakura (浅倉 威 Asakura Takeshi): Takashi Hagino (萩野 崇 Hagino Takashi)
- Daisuke Okubo (大久保 大介 Ōkubo Daisuke): Kanji Tsuda (津田 寛治 Tsuda Kanji)
- Reiko Momoi (桃井 令子 Reiko Momoi): Sayaka Kuon (久遠 さやか Kuon Sayaka)
- Nanako Shimada (島田 奈々子 Shimada Nanako): Hitomi Kurihara (栗原 瞳 Kurihara Hitomi)
- Megumi Asano (浅野 めぐみ Asano Megumi): Chisato Morishita (森下 千里 Morishita Chisato)
- Sanako Kanzaki (神崎 沙奈子 Kanzaki Sanako): Kazue Tsunogae (角替 和枝 Tsunogae Kazue)
- Victim: Hitomi Ozawa (尾澤 瞳 Ozawa Hitomi), Reiko Kanade (奏 礼子 Kanade Reiko)
- Sheerghosts (シアゴースト Shiagōsuto, Voice): Hiroyuki Shibamoto (柴本 浩行 Shibamoto Hiroyuki), Shigenori Sōya (宗矢 樹頼 Sōya Shigenori)
- Cards used:
- Ryuki Survive Final Vent, Survive Rekka, Sword Vent
- Survive Shippu
- Weapons/Powers summoned:
- Drag Visor-Zwei, Dragon Firestorm, Drag Saber
- Dark Visor-Zwei
- Advent Card appeared before episode's preview:
- Ryuki Survive Shoot Vent
- Starting in 2003 onwards, The Kamen Rider and Super Sentai series aired under a new time block called Super Hero Time, starting with Kamen Rider 555.
- First appearance of the Raydragoons.
- This episode finally reveals that Shiro Kanzaki is truly dead, contrast to Yui's denial about her brother's fate as stated by Reiko in The 13th Rider.
- This episode aired alongside Ninpu Sentai Hurricaneger episode 45, Scroll 45: Refuge and Spring Cleaning.
- The DVD Release of Kamen Rider Ryuki Volume 12 features episodes 46-50.
- The Blu-ray Release of Kamen Rider Ryuki Volume 3 features episodes 35-50.