Madoka

is a high school student who attends Saint Ishiyama Academy where she has participated in the school's special event, Saint Saint X'mas, with a fellow high school student named Arihara.

Appearance
Madoka is a slender girl with short light-colored hair and dark eyes.

During her match in the Saint Saint X'mas competition, Madoka wore a tracksuit for females. The tracksuit consisted of a dark jacket and dark shorts, which barely covered her buttocks. The collar of the jacket, which was upturned, plus the ends of the sleeves and jacket itself, were crafted from a light-colored latex piece.

A single light-colored lined stretched across the middle of the jacket with a light-colored zipper while a thick, horizontal line of a similar color stretched across the front and on the upper sleeves. Underneath the jacket is a light-colored shirt. Madoka also wore light-colored socks that reached just below her ankles and topped them off with light-colored Mary Jane shoes. Like her partner, Arihara, she wore her jacket zipped closed.

Personality
Madoka is somewhat pessimistic, thinking that she would lose immediately in the Saint Saint X'mas competition after seeing Kaname Izuma and Aoi Kunieda. However, she can be quick to change thoughts as she later came to believe that she would win, due to seeing Aoi fluster about their match, then used the same incident to support her confidence in winning later on.

Saint Saint X'mas Arc
Madoka and Arihara participate in the Saint Saint X'mas competition together where they advance to the Top 16.

In the first round, they are selected to go sixth, pairing off against the Suzuki-Kamijō pairing, where they end up winning in the first round. Afterward, they are selected to fight Kaname Izuma and Aoi Kunieda. As their match begins, both couples get changed into jogging suits, and then they step up to the boxing ring in the high school's gymnasium to face each other; as they are all introduced, Madoka quietly thinks that they are going to lose. She listens to the instructions and proceeds to tie a bandanna on her head, then rides on Arihara's shoulders; seeing Aoi fluster about the nature of their event, she now thinks that they will actually be able to win. However, Aoi musters up her courage and prepares herself on Izuma's shoulders. When the match begins, Madoka remarks on how quickly Aoi gained her cool after such a long wait and then asks whether she will be fine. Suddenly, Madoka realizes that her bandanna has already been retrieved, thus causing her pair to lose the first round, much to her surprise. Madoka then sulks about her loss.

Arihara
Madoka and Arihara participated together in a Saint Saint X'mas competition on Christmas Eve.

Etymology

 * The name Madoka means "circle, yen, round, money, rotund" (円).