OVA
Description
Yuiri Haba is a Sword Shaman affiliated with the Lion King Agency, originating from High God Forest. She uniquely maintains a living family within the agency, including parents employed as office workers and a younger brother close in age; this connection influenced her assignments, sparing her from high-risk missions. Her appearance features a medium-bob hairstyle with dangling locks and a ribbon-style hairpin, typically dressed in a red school uniform regarded as cute by acquaintances.

Her personality blends compassion with notable jealousy, particularly concerning Kojou Akatsuki. An avid reader of romance manga, a fact known only to her close friend Shio Hikawa, she harbors romantic fantasies about Kojou. She was initially nominated as a candidate to become his observer but was rejected due to her inability to wield the Schneewalzer effectively and agency concerns for her family's wellbeing. This rejection fuels her envy toward Kojou's closeness with Yukina Himeragi, whom she addresses as "Yukii".

In combat, Yuiri employs the mass-produced spiritual sword Rosen Chevalier Plus. Her missions frequently pair her with Shio Hikawa, her former High God Forest classmate. Key operational involvements include capturing Gajou and Nagisa Akatsuki at Kamioda Temple during "The Fugitive Fourth Primogenitor" arc, and guarding Gajou alongside Shio in "Knight of Sinful God". Later, tasked by Hisano Akatsuki to protect Nagisa during a sealing ceremony for Avalon, she encountered a mysterious young girl on a frozen lake, shielding her with a coat and escorting her to safety amid demon beast attacks. She escorted Glenda to Itogami Island in "The Roses of Tartarus", collaborating with Sayaka Kirasaka after their ship collided with wrecked vessels. Investigating Glenda's true nature at Blue Elysium in "A War of Primogenitors", she confronted Veres Aladar. After being overpowered, she instructed Glenda to seek aid from Kojou and Yukina.

Yuiri shares a bond with Glenda, who shows particular fondness for her. Her broader connections include camaraderie with Sayaka Kirasaka and mentorship toward Yukina Himeragi. According to light novel continuity, she eventually marries Kojou Akatsuki.