|This article is about a/an episode in Kamen Rider Agito.|
That Summer Day (あの夏の日 Ano Natsu no Hi) is the twenty-eighth episode of Kamen Rider Agito.
A few weeks before Episode 27...
A boy running from his past, and two men in black suits, bumps into Ryo Ashihara. Ryo decides to help the boy run far away... until they run into an Unknown.
to be added
- Shouichi Tsugami (津上 翔一 Tsugami Shōichi): Toshiki Kashu (賀集 利樹 Kashū Toshiki)
- Ryo Ashihara (葦原 涼 Ashihara Ryō): Yūsuke Tomoi (友井 雄亮 Tomoi Yūsuke)
- Tōru Hōjō (北條 透 Hōjō Tōru): Jun Yamasaki (山崎 潤 Yamasaki Jun)
- Kōji Kōno (河野 浩司 Kōno Kōji): Kazumasa Taguchi (田口 主将 Taguchi Kazumasa)
- Kazuki Asano (浅野 一輝 Asano Kazuki): Yosuke Mitsuhashi (三觜 要介 Mitsuhashi Yōsuke)
- Kazuki Asano's mother: Setsuko Mishima (三島 せつこ Mishima Setsuko)
- Kazuki Asano's father: Kazuto Yamashiro (山城 和人 Yamashiro Kazuto)
- Black Suit Man: Masakazu Idono (井殿 雅和 Idono Masakazu), Masahiro Watanabe (渡邊 昌宏 Watanabe Masahiro)
- Auto Mechanic: Tetsuya Nakayashiki (中屋敷 哲也 Nakayashiki Tetsuya)
- Echinus Famelicare (エキヌス・ファメリカーレ Ekinusu Famerikāre, Voice): Jin Yamanoi (山野井 仁 Yamanoi Jin)
- Storm Form
- Ground Form
- This episode aired alongside Hyakujuu Sentai Gaoranger episode 25, Quest 25: The Third Ogre Princess Arrives.
- Viewership: 10.0%
- This is the first Kamen Rider Series episode written by Yasuko Kobayashi, who would go on to be the head writer for Kamen Rider Ryuki, Kamen Rider Den-O, and Kamen Rider OOO.
- This is the only episode of Kamen Rider Agito not written by Toshiki Inoue.
- This is the first time Shouichi starts out in a form other than Ground Form (in this case Storm Form).
- This is the only episode of the series to air in a distinct aspect-ratio formula. Contrary to the other episodes airing in widescreen, this one airs windowboxed for the first 49 seconds, the OP is windowboxed and lastly, aside from some flashbacks, the rest of the episode is shown in 4:3 (which is the ratio for full-screen).
- The DVD Release of Kamen Rider Agito Volume 7 features episodes 25-28.
- The Blu-ray Release of Kamen Rider Agito Volume 2 features episodes 17-35.