Imu

A third-year at Hebijo Clandestine Girls' Academy, Miyabi's childhood friend, and Murasaki's older sister. Imu blames herself for the loss of Miyabi's mother to a yōma attack. Following that attack she trained alongside Miyabi to become shinobi until their enrollment into Hebijo Clandestine Girls' Academy.

After rising through the ranks at Hebijo, Imu and Miyabi were chosen to participate as Elites on a mission to eliminate a squad of Good shinobi. The Good shinobi were hunting yōma; and when the two opposing squads clashed, the yōma took advantage of the chaos and slew most of the shinobi present--including Ryōbi and Ryōna's older sister, Ryōki.

Blinded by rage, Miyabi activated Blood Riot--a forbidden art that draws upon the power of yōma in exchange for a terrible price. Although Miyabi defeated the yōma, she lost control of Blood Riot and fell into a coma. After recovering from her own injuries over the incident, Imu tended to the comatose Miyabi until the aftermath of the battle against the yōma, Orochi, that left Hebijo in ruins. Waking from her coma, Miyabi vows to restore Hebijo's pride by defeating the newly formed Crimson Squad and Hanzō's elites with Imu at her side.

Imu specializes in fighting with swift footwork and her staff, Ruyi Bang. She is capable of changing the size of her staff and channeling lightning through it for stunning results. Her guardian is the fox.