This article is about a/an rider in Kamen Rider Kiva.
Megumi Aso
Aso Megumi
Kamen Rider Ixa
Kamen Rider Kiva-la
Gender: Female
Series: Kamen Rider Kiva
Motif: Knight, Christian Crusader, Cross (Ixa)
Vampire, Princess, Bat, Heart (Kiva-la)
Rider Type: Hero
Homeworld: Earth
First Appearance: Fate: Wake Up!
Last Appearance: Finale: The Inheritors of Kiva
Number of Episode
48 (Kiva)
1 (Movie)
Full list of appearances
Actor: Nana Yanagisawa


Kamen Rider Ixa

Kamen Rider Kivaara

Kamen Rider Kiva-la

Megumi Aso (麻生 恵 Asō Megumi) is the leading female protagonist on the 2008 side of Kamen Rider Kiva. She is one of the users for the IXA System and in the SIC Hero Saga, she becomes Kamen Rider Kiva-la.


Megumi has occasionally been seen on the sidelines offering some help to the series Kamen Riders, sometimes becoming Kamen Rider Ixa, specifically to combat the Rook and other major threats when Nago is unable to. She is able to convince her younger brother to let her stay with the Fangire Hunters after she defeats the Rook. After Wataru goes into self isolation, after his outburst due to his awakened Fangire Blood she and Nago try to cheer him up to no avail. Megumi helps Nago to continue to fight as Ixa when his eyesight is failing and he is considering quitting. After the final battle, she marries Nago and tries to help with the new threat of the Neo-Fangire, but the guests keep her from doing so to keep her from ruining her dress. However, in the SIC Hero Saga, Kiva-la appears and grants Megumi the ability to become Kamen Rider Kiva-la in order to fight against the Rook's Sabbat with the other riders.


As a Fangire Hunter, Megumi makes it her personal duty to finish her mother, Yuri Aso's unfinished affairs, such as the Rook. She meets Wataru and develops a liking towards him after helping him with his allergy issue, unaware that he is actually Kiva himself. She is also not afraid to tell him off whenever he acts strange. While Keisuke Nago has expressed his interest in her, Megumi cannot stand him and was reluctant to notify him of Kiva's reappearance. However her feelings for him change throughout the series, eventually marrying him. She seems to share her mother's cynophobia.

Over time, she starts to see Kiva in a different light as he continues to fight the Fangire, rescuing her on more than one occasion in the process. When Mamoru Shima orders the elimination of Kiva, together with Nago she tries to assassinate Kiva but cannot do it.



Fangire Slayer

Megumi's main weapon is a rather small pistol that shoots slugs at high velocities, with an attachment which shoots out a chain that resembles her mother's Fangire Slayer.

Rider Powers

"Fist On!"
―Transformation announcement[src]

Kamen Rider Ixa

Megumi is one of the four 2008 users of the IXA Systems. She along with Ryo Itoya are the only users to not use the Rising Ixa function.

Ixa Nigo

Kamen Rider Ixa "Nigo"

In Kamen Rider Kiva: Final Stage, she uses a newly-developed IXA System called IXA "Nigo".

Appearances: Kiva Episodes

Kamen Rider Kiva-la

Kamen Rider Kiva-la

In the S.I.C. Hero Saga side story King of Vampire (which is an alternate ending to Kamen Rider Kiva), at the end of the wedding Kiva-la shows up instead of Masao Kurenai to warn everyone about the threat of the Rook's Sabbat. Kiva-la chooses Megumi to become Kamen Rider Kiva-la.

Behind the scenes


Megumi Aso is portrayed by Nana Yanagisawa (柳沢 なな Yanagisawa Nana). As Kamen Rider Ixa, her suit actor is Yūichi Hachisuka (蜂須賀 祐一 Hachisuka Yūichi).

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