|This article is about a/an episode in Kamen Rider Den-O.|
Yuto Sakurai's past self appears before Ryotaro to tell him to not try to be so reckless in his pursuits again as a violent Imagin suddenly makes its move in the present.
Ryotaro attempts to confront Yuto about his ties to the Sakurai he knew, only to be told that it was none of his business. Nonetheless, Ryotaro attempts to convince the Owner to let him enter the past. Meanwhile, a man named Kōhei Amano formed a contract with the Jelly Imagin to dig up a time capsule. Hana and Ryotaro both meet Yuto at Airi's shop, and an eventual confrontation between Momotaros and Deneb occurs, both possessing their respective hosts.
However, Deneb simply presents a peace offering, and so Yuto expels him from his body. Surprisingly, Deneb is able to take a physical form, implying that Yuto has a full contract with Deneb. Elsewhere, the Jelly Imagin attempts to fulfill his contract by forcing his contractor to do the work instead. Ryotaro attempts to fight the Jelly Imagin, but it eventually manages to escape.
He has another encounter with Yuto who tells him to stop interfering with time just to save people. As he reveals himself to be another Kamen Rider, he calls upon the ZeroLiner, leaving Ryotaro behind, once again confused.
- Ryotaro Nogami (野上 良太郎 Nogami Ryōtarō): Takeru Satoh (佐藤 健 Satō Takeru)
- Hana (ハナ Hana): Yuriko Shiratori (白鳥 百合子 Shiratori Yuriko)
- Yuto Sakurai (桜井 侑斗 Sakurai Yūto): Yuichi Nakamura (中村 優一 Nakamura Yūichi)
- Naomi (ナオミ Naomi): Rina Akiyama (秋山 莉奈 Akiyama Rina)
- Owner/Opening Narration (オーナー／オープニングナレーション Ōnā/Ōpuningu Narēshon ): Kenjirō Ishimaru (石丸 謙二郎 Ishimaru Kenjirō)
- Airi Nogami (野上 愛理 Nogami Airi): Wakana Matsumoto (松本 若菜 Matsumoto Wakana)
- Seigi Ozaki (尾崎 正義 Ozaki Seigi): Akira Nagata (永田 彬 Nagata Akira)
- Issē Miura (三浦 イッセー Miura Issē): Ryo Ueno (上野 亮 Ueno Ryō)
- Momotaros (モモタロス Momotarosu, Voice): Toshihiko Seki (関 俊彦 Seki Toshihiko)
- Urataros (ウラタロス Uratarosu, Voice): Kōji Yusa (遊佐 浩二 Yusa Kōji)
- Kintaros (キンタロス Kintarosu, Voice): Masaki Terasoma (てらそま まさき Terasoma Masaki)
- Ryutaros (リュウタロス Ryūtarosu, Voice): Kenichi Suzumura (鈴村 健一 Suzumura Ken'ichi)
- Deneb (デネブ Denebu, Voice): Hōchū Ōtsuka (大塚 芳忠 Ōtsuka Hōchū)
- Kōhei Amano (天野 晃平 Amano Kohei): Yuki Yoshinaga (吉永 雄紀 Yoshinaga Yūki)
- Haruka (遥香): Ayano Moriyama (森山 綾乃 Moriyama Ayano)
- Clerk: Aya Watabe (渡部 彩 Watabe Aya)
- Worker: Koji Mitsumizo (三溝 浩二 Mitsumizo Kōji)
- Mother: Tomoko Matsumoto (松本 朋子 Matsumoto Tomoko)
- Child: Mai Irie (入江 まい Irie Mai)
- Jelly Imagin (ジェリーイマジン Jerī Imajin, Voice): Ryūsei Nakao (中尾 隆聖 Nakao Ryūsei)
- Kamen Rider Den-O/Momotaros: Seiji Takaiwa (高岩 成二 Takaiwa Seiji)
- Urataros: Eitoku (永徳 Eitoku)
- Kintaros: Jirō Okamoto (岡元 次郎 Okamoto Jirō)
- Ryutaros: Toshihiro Ogura (おぐら としひろ Ogura Toshihiro)
- Kamen Rider Zeronos: Makoto Ito (伊藤 慎 Itō Makoto)
- Deneb: Yoshifumi Oshikawa (押川 善文 Oshikawa Yoshifumi)
- Jelly Imagin: Jun Watanabe (渡辺 淳 Watanabe Jun)
- Den-O - Sword Form
- As part of Super Hero Time, this episode aired alongside Juken Sentai Gekiranger episode 16, Lesson 16: Jiri-Jiri! Confrontation Beast Hall, Extra-curricular Class.
Blu-ray Box 2 comes with 18 episodes.