A child whom Nagisa befriends in the midst of the conflict against Big Gold. Nagisa protects Sayoko and her injured mother from a vedim disguised as a police officer, using a bracelet given to her by Iczer-1 for her own protection. Sadly, Sayoko&#039;s mother is later transformed, becoming a vedim herself, and a regretful Nagisa is forced to destroy her to protect Sayoko. Sayoko later encourages Nagisa to fight during the battle against Iczer Sigma, and nearly dies when Iczer-2 attempts to crush her underneath Iczer Sigma&#039;s massive foot. Fortunately, she is saved at the last minute by Iczer-1. Nagisa often refers to her as &quot;Sayo-chan&quot;.

Nagisa is a schoolgirl with schoolgirl tendencies, waking up late, rushing off to school and meeting up with friends upon the way. One morning Nagisa comes across a woman dressed in a strange uniform who seems to stare at her, unnerving Nagisa. Later that day, whilst staring out the window, Nagisa becomes aware of a ball bouncing by itself which flings itself towards her window seat, shattering the glass yet not harming her... Turning back to the front she finds a gaping mouth bristling with teeth inches from her face and no-one else about. She screams and the world returns to normal with her standing and the centre of curiosity of her class... why did she scream? 

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