Oni 9
Personal Info
Race Oni
Age 800+
Nationality Japanese
Status Imprisoned in a Mask
Shadowkhan Mantis Khan
Weakness Unknown
General Info
Occupation General
Affiliation Shadowkhan
Oni Generals
Previous Affiliation Feudal Japan
Partner Rairakku
Debut/Closing Season 4 Episode 13

Aka is one of Tarakudo's Oni General who could summon the Mantis Khan. Nobody wore his mask.


He is red, has yellow eyes and hairy eyebrows.



Hundreds of years ago the nine Oni generals were sealed in masks, where they were helpless and could not use their powers.

Season 4

In Ninja Twilight, Aka's mask was found in a wrecked ship underwater. Jade noted getting this mask was too easy, as it turned out Tarakudo had other plans. After the nine masks was joined together, all of the Oni generals were freed and tried to destroy the world. Aka was walking with Rairakku to one of the four corners of the earth. They were briefly defeated by Jackie and Super Moose but Tarakudo managed to capture them. After Jade put Tarakudo's mask on his face, all the Oni and Shadowkhan were imprisoned within.


Season 4

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