|This article is about a/an character in Kamen Rider Agito.|
Masumi Sekiya (関谷 真澄 Sekiya Masumi) is a cynical woman and one of the passengers involved in the Akatsuki incident, ending up a host of the El of Water until he gathered enough energy to leave her body, depleting her of her life-energy as a result.
- Kamen Rider Agito
|Kamen Rider Agito|
|Shouichi Tsugami - Makoto Hikawa - Ryo Ashihara - Kaoru Kino - Shiro Mizuki (Movie Exclusive)|
|Mana Kazaya - Professor Yoshihiko Misugi - Taichi Misugi - Dr. Higashi Kunieda|
|Tokyo Police Department|
|SAUL Team: Sumiko Ozawa - Takahiro Omuro|
|Police: Toru Hojo|
|The Akatsuki Survivors|
|Tomoko Miura - Saeko Shinohara - Aki Sakaki - Katsuhiko Sagara - Masumi Sekiya - Koji Majima - Jun Tachibana - Masahide Takashima - Kazuo Ashihara|
|The Els: El of the Water - El of the Wind - El of the Ground|
|Jaguar Lords - Tortoise Lords - Snake Lords - Crow Lords - Zebra Lords -Jackal Lords - Bee Lords - Stingray Lords - Fish Lords - Lizard Lords - Ant Lords|
|View • [Edit]|
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