Shizuka Nanami

is a senior at St. Ishiyama Academy and a member of the Rokkisei. She is an old friend of Hidetora Tōjō, and both knew Saotome in the past. She is the sole female member of the Rokkesei, being also captain of the archery team and the student council vice-president.

Appearance
Shizuka is a young woman of average height with a slender build and large breasts, which has been commented on by Yuka Hanazawa. She has long reddish-orange hair that is waist length, with several strands next to her head sticking out in a spiky manner, and her short bangs clipped together by several hairpins to frame her face. Shizuka also has brown eyes.

She commonly wears a school uniform at Saint Ishiyama Academy, and over her Rokkisei badge, she dons a small pin that vaguely resembles a purple bat. When out of school, she is seen wearing casual clothing, usually including a jacket of some sort.

Powers and Abilities
Her actual fighting skill is as of yet undetermined, but Kunieda was surprised that she could reach the rooftop undetected by her, and both girls rose up to help Oga and Miki against Teimō, which indicates Shizuka is as unafraid of physical combat against men like Kunieda. She can feel Saotome using his demonic powers, which shows she has notable strength for a human.

Kaname Izuma
She seems to have a strong relationship with Izuma as she is able to joke and laugh with him, something the other horsemen seem unable to do (likely due to their fear of him). She is seen massaging Izuma's back after their volleyball training session.

Hidetora Tōjō
Shizuka is a childhood friend of Tōjō and the two appear close to one another, both calling each other by their first names, with Shizuka calling him "Tora". It is implied that Shizuka has romantic feelings for Tōjō; when Aoi asked her if they were dating, Shizuka said that they were not but seemed disappointed by it.

Trivia

 * Shizuka means "calm" or "quiet" while Nanami means "Seven Seas".