A member of Atheos and one of the masterminds behind the entire Atheos project. Kochigawa first appears as a cold hearted woman with only her goals in mind. Ruthlessly sending Aiko on life threatening missions, Kochigawa only analyzed Aiko based on convenience and usefulness. When Aiko became useless to the Atheos organization, Kochigawa turned her in to Director Okuda. It turns out much later that Kochigawa's mother was Director Okuda's wife and was administered Chimaira treatment. However when her mother evolved into one, she was killed by Okuda. Since then, Kochigawa has hated her father and desired to revive her mother, together with Okuda, thus using Aiko for that purpose. When her plan was realized by a close associate, Yuji Oumi, she ignored his pleas to flee with her, which resulted in Oumi's being killed, although this was later proved to be false. Having met Oumi again changed her perspective on things and she sided with the protagonists, killing her father and committing suicide, shutting herself in the self-destructing facility.

(Source: Wikipedia)

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