Yakumo Kato has a cold demeanor despite his quick temper. Yakumo was originally in England to learn magic until he was called back to Japan.
Though a realist who doesn't really see a need to carry out his grandfather's legacy, he decides to prove himself better skilled at the Shuriken Ninja Arts. He becomes the blue-colored Ao Ninger, whose signature attack is the Ninja Dragon Slash. With the Chozetsu Shobu Changer, Ao Ninger can become Ao Ninger Chozetsu. After the final battle against Gengetsu Kibaoni, Yakumo returns to his magic school in England and introduces the combined techniques of ninjutsu and magic, though still has a long way to go teaching the British wizards.
<Publication Information
- Ninningers : Yakumo Katou
- Japanese : 加藤 八雲
- Version : Shuriken Sentai Ninninger Series
- Type : Ninningers
- Known As : AoNinger
- Color : Blue
- Relative :
- Doshun Igasaki : Ancestor
- Former Last Ninja : Great-grandfather
- Yoshitaka Igasaki : Grandfather
- Harukaze Katou : Mother
- Tsumuji Igasaki : Uncle
- Sakurako Igasaki : Aunt
- Unnamed aunt
- Yoshiharu Igasaki : First cousin once removed
- Takaharu Igasaki : Cousin
- Fuuka Igasaki : Cousin
- Nagi Matsuo : Cousin
- Kasumi Momochi : Cousin
- Affiliation : Igasaki Ninjutsu Dojo
- Gender : Male
- Season : Shuriken Sentai Ninninger
- HomeWorld : Earth
- Season : Shuriken Sentai Ninninger
- First Appeareance : Ressha Sentai ToQger vs Kyoryuger : The Movie
- Last Appeareance : Doubutsu Sentai Zyuohger vs Ninninger : Message from the Future from Super Sentai
- Number of Appeareance :
- 47 : Ninninger
- 5 : Movie
- Potrayer : Gaku Matsumoto
- Main View : Full Episod
During Kamen Rider × Super Sentai: Ultra Super Hero Taisen, Yakumo temporarily assumes the form of Aorider, a hybrid of Aorenger and the Double Riders, once he and his team prevail in the Game World's Ultra Super Hero Taisen tournament. In this form, he rides Kamen Rider Kiva's Castle Doran against the Xevious fleet. Beyond AoNinger, Yakumo fought through the Yokai horde before reuniting with the others as they backed-up Takaharu against Sakuya Kyuemon.
With their unwavering resolve, all six Ninningers were able to restore their Nintality, transforming together and overcoming Sakuya Kyuemon, managing to get through to him before he was absorbed by Gengetsu who, as a giant, would be finally destroyed by the Ninningers in Gekiatsu Dai-Oh with help from Kyuemon, who left behind the End Shuriken before passing away.
With the End Shuriken in their grasp, the Ninningers used it to wish for a world without the End Shuriken, finally wiping out the Yokai and restoring the damage that had been done to the world. With the title of Last Ninja passed onto them, the six Ninningers elected to go their seperate ways and meet back in two years to recollect what they have each done. Naming himself the Last Magic Ninja, Yakumo returned to his magic school in England where he taught a combination of ninjutsu and magic
Doubutsu Sentai Zyuohger vs Ninninger : Message from the Future from Super Sentai
To Be Added
Doubutsu Sentai Zyuohger
As a memento of their team-up, Misao Mondou made a set of Zyuohger vs. Ninninger menko cards bearing the heroes' likenesses.
Kamen Rider × Super Sentai : Chou Super Hero Taisen
An iteration of Yakumo Katou/AoNinger was selected to join Team Ex-Aid, formed and led by Emu HojoIcon-crosswiki to fight for the title of Kamen Sentai Gorider in the Chou Super Hero Taisen tournament. After being chosen by Emu and Momotaros for their team, he mistakenly choses Masato Jin, due to being similar to Tsubasa Ozu. Facing the Dairangers in the first round, AoNinger bested KirinRanger. Ultimately, Team Ex-Aid faced off against Team Genm, led by Kamen Rider Genm Zombie Gamer Level X, in the final round. Though AoNinger was beaten by Kamen Rider Specter, the team prevailed as Ex-Aid bested Genm. Upon completing the tournament, AoNinger became Ao-Rider as Team Ex-Aid were granted the form of Kamen Sentai Gorider, allowing them to use the Rider Hurricane together to destroy the Andor Genesis mothership. Their objective achieved, Yakumo and the other Game World teammates returned to their card forms and left while Emu's Aka-Rider transformation as he was left to face the Chou Shocker Taisen.
Game appearances
- Super Sentai Battle Base
- Shuriken Sentai Ninninger : Game de Wasshoi!!
Form
AoNinger
- AoNinger
- Origin : Earth
- Version : Shuriken Sentai Ninninger Series
- Type : Ninningers
- Form : AoNinger
- Color : Blue
- Announcement :
- Height :
- Weight :
- Punching Power :
- Kicking Power :
- Maximum Jump Height :
- Maximum Running Speed :
- Finisher Power :
- Season : Shuriken Sentai Ninninger
- Ninjutsu Expertise : Being trained to be a ninja for many years, he is skilled in ninjutsu and Shuriken Ninja Arts.
- Enhanced Reflexes : Since Yakumo as well is a trained ninja, his body reflexes also maximized.
- Body Flicker : He was able to move at an almost untraceable speed in a puff of smoke.
- Body Replacement : He is able to put a straw dummy in his place to fool his enemies.
- Shuriken Ninja Art : Thanks to his Nintality inherited from Yoshitaka Igasaki, Yakumo can perform a wide variety of abilities through ninja techniques in addition to those accessed using the Ninninger arsenal.
- Magic Expertise : As a student of a unnamed wizarding school in England, as well as having being tutored by Tsubasa Ozu/MagiYellow, he has shown many skills of magic. Yakumo notes that magic wears off over time meaning that, such as in the case of his transformation spells, they are only temporary.
- Fire Manipulation : He was able to create a fire and shape it into a small dragon with his wand. When imbued it with AkaNinger with his Shuriken Ninpo-fuelled Flame Technique, it turns him into a giant fire dragon that attacks his target.
- Levitation : He was able to use his wand to levitate himself and fly around.
- Daudora Taiha : Forces the target to reveal what information Yakumo wanted to know.
- Roude Migaka : Creates mirror as a defensive shield against magic-themed attacks.
- Reena ni Kota : Turns Dragomaru into its kite-riding formation.
- Reedomo Nin Gorado : Revert the kite-riding Dragomaru back to its dragon formation.
- Reega Arimo : Creates a cyclone as an attack.
- Reena ni Kinuta : Changes the target into a Tanuki statue, accidentally used on Tsumuji Igasaki.
- Redomo ni Shidarifu : Revert the spells that affected the target to normal, used to reverse Tsumuji's aforementioned Tanuki transformation. Shinobi 17: Good Bye, StarNinger!
- Reena ni Muufoniyu : Changes the target into a baseball player, used on Takaharu.
- Reena ni Miruguinu : Changes the target into a plush white dog toy reminsicent of Wanmaru, used on Fuuka.
- Reena nichamo Onomaruku : Changes the target into a dump truck toy reminiscent of Dumpmaru, used on Nagi.
- Reena nichamo Onotagi : Changes the target into a toy guitar, used on Kinji.
- Reena ni Uyoginni : Changes the target into a doll, used to turn Kasumi and Takaharu into a pink girl doll and an AkaNinger figurine respectively.
- Reena nichamo Onongorado : Changes the target into a blue dragon toy reminiscent of Dragomaru, used on himself.
- Reena ni Jaanni :
Device: Weapons: Mecha:
AoNinger Chozetsu
- AoNinger Chozetsu
- Origin : Earth
- Version : Shuriken Sentai Ninninger Series
- Type : Ninningers
- Form : AoNinger Chozetsu
- Color : Blue
- Announcement :
- Height :
- Weight :
- Punching Power :
- Kicking Power :
- Maximum Jump Height :
- Maximum Running Speed :
- Finisher Power :
- Appearances : Ninninger Episodes 38, 44
- AoNinger Chozetsu is AoNinger's power-up form accessed through the Chozetsu Shuriken and Chozetsu Shoubu Changer with Shishi-Oh's blessing, allowing him to fight with the power of the lion OtomoNin.
Device: Mecha:
Yakumo
- Yakumo
- Announcement : The Chozetsu! Chozetsu Ninja!
- Appearances : Episode 38
AoNinger Ranger Keys
- Main Article : AoNinger Ranger Key
- Origin : Earth
- Version : Kaizoku Sentai Gokaiger Series
- Type : Ranger Keys
- Form : AoNinger
- System : Gokai Changes
- Usage : Transformation
- Announcement : Gokai Change! Ninninger!
- Users : Joe Gibken / Gokai Blue
- Appeareance : Gokaiger Episod 28
- AoNinger Ranger Keys is Yakumo's personal Ranger Key released as part of a set of Ninninger Ranger Keys in Premium Bandai. It made its debut in episode 28 of Zyuohger. The AoNinger Ranger Key was mainly used by Joe Gibken / Gokai Blue, who used it to fight as AoNinger.