Birthday: September 3rd (Virgo)

Eye Color: Purple

Hair Color: Dark Maroon

Age: 15

Cup size: B (original), G (2nd season)

Bust: 80 (original), 91 (2nd season)

Waist: 56

Hip: 84

Affiliations: Athos

Maria: Maria to Sasha and Katja

Element: Sword of Maria, half of Sword of Maria (manga)

Likes: Sasha, Tomo, Cooking

Dislikes: Violence

Mafuyu is the adopted daughter of St. Mihailov's last dean, and the self-appointed protector of Tomo Yamanobe. Upbeat and cheerful, she is so proficient in kendo that she carries a wooden sword with her all the time. She has to endure hardship on a daily basis in form of her classmates picking harshly on her and especially Tomo. This changes when she encounters Sasha for the first time, where she starts living with him and, little by little, is pitted herself in the fights between Qwasers. Though at odds with Sasha's coldness, Mafuyu has started to open up to him and the two have formed a stronger bond.

Mafuyu is an average girl with shoulder-length maroon hair and purple eyes. She is always seen wearing her school uniform and holding her kendo sword, but she changes her outfits naturally.

She is often made fun of by Sasha for having small breasts, one of the smallest in the series along with Hana Katsuragi, Ekaterina Kurae and Fumika Mitarai being the only ones smaller than her.

Mafuyu is a strong-willed, determined and cheerful girl who likes to be independent. She won't hesitate to help others. Mafuyu gets embarrassed easily, but she can be surprisingly kinky, especially when it comes to Sasha.