Igura is an executive of Nova Shocker and a major antagonist in Kamen Rider 1.
She was portrayed by Nao Nagasawa.
Igura conspired with the other Nova Shocker executives to use an electromagnetic pulse to cause blackouts in power and mass panic.
Kamen Riders Ghost and Specter arrived at Nova Shocker's power to stop their scheme, but are confronted by Igura alongside Urga and Buffal, who overpower the Riders and force them to flee. With no one to challenge their scheme, Igura and other executives force the Japanese government to sign a treaty with them to restore energy.
Igura later showed up as part of the Nova Shocker force that arrived to disrupt a ritual being performed by Ambassador Hell and the old Shocker to retrieve the Alexander the Great Eyecon from the body of Mayu Tachibana, seeking to claim the Eyecon for themselves. In the course of the three-way battle between the two Shocker factions and the Kamen Riders, the Eyecon is released and Urga takes possession of it to use to further Nova Shocker's domination. However, after Urga becomes overwhelmed by the Eyecon's power, Igura attempted to persuade Urga to give up the Eyecon, but is killed by him after the Eyecon overtakes him. Specter and Ghost later both arrived at Nova Shocker's base, but were unable to withstand Urga's new power granted to him by the Alexander The Great Eyecon.
- Although she died without revealing her kaijin form, the pamphlet of the movie indicates that her true form is nearly identical to Hachi-Onna(wasp woman)-type kaijin.