Akira Harabuki, a university student, is thrust into supernatural conflicts after the Great Collapse. She wields blood-based abilities, unleashing explosive waves of blood energy in combat. Her shapeshifting familiar, Elsbernd, impersonated another character during the assault on the Infinity Theater. Aligned with the Guardian State faction, Akira previously maintained a friendship with Haru Minakami before his alignment with the antagonistic AVAL Science Foundation. Her personality exhibits a strong sense of duty and strict adherence to faction protocol, coupled with persistent anxiety for the safety of others that manifests as constant vigilance against threats. Through combat experiences, Akira evolves from rigidly following procedures to acting on her personal convictions. Her narrative concludes when she intercepts an attack from Kaburagi Kark, sacrificing herself to protect Haru Minakami. This final act signifies a transition from organizational loyalty to personal devotion, embodying her consistent prioritization of others' safety over self-preservation.