A manga only character. Kirie is mysterious and ambiguous, a member of the Watchers. She makes her first appearance in
Volume Eight of Spiral, and seems to be one of the few people who knows about the secret of the Blade Children. She smokes
and has an arrogant personality, but helped an injured Eyes when he was severely wounded after his battle against Kanone.
Ayumu gave her blood samples from himself and Hizumi. Kirie confirms that their DNA is identical to their brothers'
(Kiyotaka and Yaiba). Since their ages are so far apart, they cannot be twins. In the end, Kirie acts as liaison between the
remaining Blade Children and Ayumu.

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