This article is about a/an character in Kamen Rider Kuuga.

Mika Natsume (夏目 実加 Natsume Mika) is the daughter of Professor Natsume, one of Daguva's victims. She was greatly depressed when her father's murder was being overlooked for the Gurongi attacks, taking the findings her father had at their house. But after Yusuke reasoned with her, Mika decides to aid in the Gurongi matter as Jean's assistant. However, she is unable to follow and decides to take up playing the flute her father gave her. But while attending the 12th Arikawa Group Flute Competition, a hostage situation by a disgruntled government worker traumatizes Mika as Yusuke tells her to not to run from her fear and continue. Three months later, Mika is attending a special college.


10 years after Kuuga's fight with N-Daguva Zeba, Mika found her father's notes about the existence of another Amadam. After sighting a few Gurongi, she goes to the ruins where the prototype Arcle is. She wore the belt and transforms to Kuuga. Similar to Kuuga, her first form is white. The black form's eyes flashes between red and black, then completely black when she loses control to it.

She fights an unnamed Gurongi in her white form, but it's killed by a different one before she can finish it off. Later she fights a jellyfish Gurongi, kills it and is shocked by the explosion she caused. She eventually faces a lion Gurongi, causing her to change from white to black out of rage. Kamen Rider Kuuga (novel)

Kuuga (Prototype)

Years after the end of the series, Mika found a prototype Arcle which was created earlier than Kuuga's, but is incomplete because of lack of an Amadam, which causes the user to go berserk. The previous user went crazy and the belt was sealed inside the Coffin of Darkness (Kuuga's Arcle was sealed in the Coffin of Light).

Wearing the belt, she transformed into Kuuga. As the prototype Kuuga, she has two forms, one white and one black. However, she must control both of her powers and temper due to the incomplete Arcle's lack of an Amadam stone, which stabilizes the user.


After the Arcle Prototype was fused with her spine, she gains the ability to transform into a Kamen Rider Kuuga.

Growing Form

Growing Form(Female Body)

Growing Form (グローイングフォーム Gurōingu Fōmu) or so rumored as White Warrior by the internet is the weakest form of Kuuga and has white armor with small horns. Unlike Yusuke's Growing Form, she can alter any material into a cannon-like weapon. Although her power is weak in this form, she can still use the finisher called "Growing Kick" (グローイングキック Gurōingu Kikku), though it is only 1/3 as strong as the Mighty Kick.

Ultimate Form

Ultimate Form (small horn in novel)

Ultimate Form (Dark Eye) (small horn in novel)

Similar to Kuuga's Ultimate Form, the black form's eyes flashes between red and black, then completely black when she loses control to it. Her most dangerous form, Ultimate Form (アルティメットフォーム Arutimetto Fōmu) or rumored as Black Warrior in the internet, combines all the powers of the other forms, Ultimate Kuuga has a much different design colored black with gold (and a little silver) trims all over her body, as well as having five horns on the head crest(except shortened), a black belt core and spiky-looking armor.


  • Mika is the only Kuuga to be a female Rider.

See also

Icon-kuuga.png Kamen Rider Kuuga
Riku - Yusuke Godai - Mika Natsume (Novel Only)
Arcle - Amadam - Gouram - TryChaser 2000 - BeatChaser 2000 - Dragon Rod - Pegasus Bowgun - Titan Sword - Mighty Anklet
Kaoru Ichijo - Hikari Enokida - Sadao Matsukura - Morimichi Sugita - Tsuyoshi Sakurai - Nozomi Sasayama
Other Allies and Characters
Sakurako Sawatari | Minori Godai | Shuichi Tsubaki | Tamasaburo Kazari | Nana Asahina | Jean Michel Sorrel | Mika Natsume | Shoji Kanzaki | Junichi Chono
Ra Group

Ra-Baruba-De | Ra-Dorudo-Gu

Zu Group

Zu-Gumun-Ba | Zu-Goma-Gu | Zu-Mebio-Da | Zu-Badzu-Ba | Zu-Zain-Da

Me Group

Me-Badjisu-Ba | Me-Giiga-Gi | Me-Biran-Gi | Me-Gyarido-Gi | Me-Gadora-Da | Me-Ginoga-De | Me-Garume-Re | Me-Garima-Ba

Go Group

Go-Buuro-Gu | Go-Bemiu-Gi | Go-Gamego-Re | Go-Bada-Ba | Go-Jaraji-Da | Go-Zazaru-Ba | Go-Jaaza-Gi | Go-Baberu-Da | Go-Gadoru-Ba

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