|This article is about a/an episode in Kamen Rider Gaim.|
After Takatora reveals the truth about Helheim Forest to Mitsuzane, he tasks his brother with recovering Kouta's Sengoku Driver. Elsewhere, Oren and Jonouchi plan to perform the same act with their own plan in mind. Kouta later receives a phone call that tells him his sister has been kidnapped.
After Takatora reveals the truth about Helheim Forest to him, Mitsuzane is tasked to recover Kouta's Sengoku Driver by any means. Mitsuzane later finds Kouta as he is having trouble getting a job due to his Beat Rider status and sees that talking his friend out of it will not work while confiding that he wants to protect his friendship with Kouta and Mai. The next day, with Yoko Minato supporting him while using a voice altering device to hide his identity from all parties, Mitsuzane hires Oren and Jounouchi before calling Kouta that he has kidnapped Akira and her safety depends on the Sengoku Driver brought to the industrial district.
Once arriving to the location, Kouta finds Oren and learns that "Akira" is actually Minato in disguise. Oren reveals that Akira is actually is at the Charmant with Jounouchi who has been given orders to attack her if Kouta refuses to surrender the belt. However, having sabotaged Jonouchi's Lockseed, Oren explains that he will instead take Kouta's Sengoku Driver by force, as he does not feel such dirty tricks are correct.
After watching Bravo get defeated by Gaim Jimber Lemon Arms, Minato chides Mitsuzane for his idea before using the Peach Energy Lockseed to become New Generation Rider Marika, telling Mitsuzane to show her where his true loyalties lie. Conflicted, and remembering his friendship with Kouta, Mitsuzane transforms into Ryugen and shoots Marika, telling her to report to Ryoma that he will protect Kouta.
After meeting with Ryoma in private to help him convince his older brother that his action was the scientist's plan, Mitsuzane arranges things so he can continue being a Beat Rider with his friends a bit longer.
- Kouta Kazuraba (葛葉 紘汰 Kazuraba Kōta): Gaku Sano (佐野 岳 Sano Gaku)
- Mitsuzane Kureshima (呉島 光実 Kureshima Mitsuzane): Mahiro Takasugi (高杉 真宙 Takasugi Mahiro)
- Oren Pierre Alfonzo (凰蓮・ピエール・アルフォンゾ Ōren Piēru Arufonzo): Metal Yoshida (吉田 メタル Yoshida Metaru)
- Hideyasu Jonouchi (城乃內 秀保 Jonouchi Hideyasu): Ryō Matsuda (松田 凌 Matsuda Ryō)
- Akira Kazuraba (葛葉 晶 Kazuraba Akira): Rika Izumi (泉 里香 Izumi Rika)
- Takatora Kureshima (呉島 貴虎 Kureshima Takatora): Yuki Kubota (久保田 悠来 Kubota Yūki)
- Ryoma Sengoku (戦極 凌馬 Sengoku Ryōma): Tsunenori Aoki (青木 玄徳 Aoki Tsunenori)
- Yoko Minato (湊 耀子 Minato Yokō): Minami Tsukui (佃井 皆美 Tsukui Minami)
- Sengoku Driver Equipment Voice (戦極ドライバー各種アイテム音声 Sengoku Doraibā Kanren Aitemu Onsei): Seiji Hiratoko (平床 政治 Hiratoko Seiji)
- Genesis Driver Equipment Voice (ゲネシスドライバー各種アイテム音声 Geneshisu Doraibā Kanren Aitemu Onsei): Shin-ichiro Miki (三木 眞一郎 Miki Shinichirō)
- Narration (ナレーション Narēshon): Hōchū Ōtsuka (大塚 芳忠 Ōtsuka Hōchū)
- Clerk: Koichi Kojima (児島 功一 Kojima Kōichi)
- Lock Used:
- Orange, Lemon Energy
- Donguri (Fake)
- Peach Energy
- Arms Change:
- As part of Super Hero Time, this episode aired alongside Zyuden Sentai Kyoryuger episode 48, Brave Final: Great Explosion! Goodbye, Kyoryuger. Starting next week, Kyoryuger was replaced by Ressha Sentai ToQger in the Super Hero Time block.
- Viewership: 5.8%
- Closing Screen Lockseed Collection:
- This is the first episode that Kaito and Mai do not appear in.
- Ironically, episode 17 is when the Secondary Kamen Rider of the Neo-Heisei Era usually make their full debut, but Kaito is completely absent from the episode. This is because Gaim borrows aspects from older shows like Ryuki & Blade and follows a trend different from the Neo-Heisei Era.
- Marika does, however, make her full debut in place of the typical Secondary Kamen Rider slot, showcasing her strength and agility, providing more than a match for Gaim Jimber Lemon Arms while holding back.
- The leopard-print blazer that Oren wears in this episode was previously used as a regular wardrobe piece for Otoya Kurenai in Kamen Rider Kiva.
- TV Asahi's official summary for 「桃のライダー、マリカ光臨！」
- Toei TV's official episode guide for 「桃のライダー、マリカ光臨！」