沙々宮 紗夜

Saya is Ayato's childhood friend and the daughter of Soichi and Kaya Sasamiya. She moved abroad six years ago to Munich due to her father's career and lost contact with Ayato. Saya is a drowsy-seeming girl, but is much more sharp and intelligent than she initially appears. However, she has bad sense of direction and is very bad with mornings.

She uses all kinds of weapons her inventor father has created for her - for example, a 38th generation Lux grenade launcher Helnekrom, a type 41 Gleaming Form - twin particle guns Waidenholt and Type 34 wave Motion heavy artillery Ark Van Ders. She entered the Festa in order to promote her father's weapons.

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