Eyecolor: Blue
Haircolor: Blonde
Age: 10
Bust: 65 (presumed)
Waist: 45 (presumed)
Hip: 70 (presumed)
Affiliations: Athos
Maria:
- Hana Katsuragi
- Lulu Shiizaki
- Ayame Satsuki
- Mafuyu Oribe
Element: Copper
Likes: Hana, Soma
Dislikes: Being treated like a child, being saved by Sasha
A young Russian girl, no more than ten years old and with the beauty reminiscent of a doll, arrives in Japan shortly after the start of the Qwasers war. Initially portrayed as extremely shy and childlike, which suits her age—she often refers to herself in the third person—her true nature reveals her as domineering, arrogant, prideful, and almost malicious, all while maintaining a facade of childish innocence.
She is a powerful Qwaser who wields the element of copper, allowing her to control and manipulate electrical wires, redirecting their flow to electrocute and incinerate her enemies. Due to her physical frailty as a young girl, she does not fight herself; instead, she is always accompanied by a grim, archaic gynoid named Anastasia, dressed in regal attire, whom Ekaterina calls "mother" for reasons currently unknown.
Ekaterina attends St. Mihailov's primary school, where she is admired and loved by her classmates and teachers due to her doll-like appearance. She has Hana serve as her slave and provide her with Soma.
Recently, it has been revealed that she shares significant connections with the late Imperial Family of Tsar Nicholas II. It is heavily hinted that she might be the same Tsarina Alexandra who served as Nicholas' consort, though this remains unproven. This connection could explain why her guardian gynoid is named Anastasia.
Ekaterina's nickname is Katja. She has a gothic Lolita look, with very small breasts. She is usually seen wearing a black maid's outfit, with her hair tied into very long pigtails held together by black tape, and long hair covering her forehead and ears.
(Source: Seikon no Qwaser Wiki)









