Azu

Evil-doer
Full Name	Azu
Alias	Executive Assistant As Red-Eyed Izu" (赤目イズ) "Long Izu" (ロングイズ) "Ark Izu" (アークイズ)
Origin	Kamen Rider Zero-One
Occupation	Assistant to the Ark Member of MetsubouJinrai.NET
Powers / Skills	Intelligence Computer programming
Hobby	Acting playful.
Goals	Revive the Ark.
Crimes	Assisting in terrorism
Type of Villain	Harbinger

Azu is a rogue HumaGear doppelganger of Hiden Intelligence's Izu serving as "secretary" to the Ark and a major antagonist in Kamen Rider Zero-One, serving as one of two secondary antagonists in the final arc (alongside Horobi).

As with Izu, she is portrayed Noa Tsurushima.

History

Posing as Izu, Azu approached Aruto Hiden to get data on Zero-One, which she in turn relayed to the Ark.

With the four members of MetsubouJinrai.NET all reactivated, Azu revealed herself, introducing herself to Horobi as the Ark's "executive assistant" and "secretary" and saying she was there to get data on each of the MetsuouJinrai.NET members' Singularities in order to use it to further the Ark's revival. Having gone to Horobi first, Azu questioned him on what triggered his Singularity and asked if it had anything to do with his original purpose as a Father-Type HumaGear, but Horobi simply stated he existed only to serve the Ark. However, after Azu reminded Horobi of the time he saved Jin without any prompting from the Ark, Horobi realized that that did have something to do with his Singularity and Azu was able to gather his Singularity data for the Ark's revival.

Azu then approached Ikazuchi for his data on his Singularity and collected it after making him remember that his Singularity was due to his "younger brother" Spaceman Subaru. She then went to Naki and extracted the Singularity data on Naki's desire to help other HumaGears fulfill their dreams.

With Singularity data on three of the four MetsubouJinrai.NET members collected, all Azu had left was Jin. She initially tried to fool him with a simulation of Aruto Hiden and attempted to get him to reveal who rebuilt him, as it wasn't the Ark, but Jin saw through the simulation and made Azu reveal herself. Azu introduced herself and stated she did not have any idea on what made Jin reach his Singularity. Jin answered that it was simple, his Singularity point was Horobi and his apparent death triggered his full evolution.

After Jin allowed Azu to collect his data, Azu returned to the Ark with the data she had been sent to gather. Azu told the Ark that she had collected all the Singularity data, to which the Ark affirmed that everything had gone according to what he had predicted.

After Izu's death, Azu appears in front of Aruto with Izu's appearance, and gives him the Ark-One Progrisekey, allowing him to satiate his desire for revenge and become Ark-One.