Ayaka Kisaragi hails from a storied lineage of Japanese exorcists but forged her own path by founding a paranormal investigation agency in Shinjuku, Tokyo. Operating from her ancestral home, she tackles supernatural crises—hauntings, demonic incursions, and rival occult operations—with a blend of ancestral knowledge and unorthodox methods. Her signature weapon, the Red Dragon Spirit Capture Star Sword, masquerades as a lipstick case before igniting into a laser blade that severs spectral entities, extends mid-combat, and projects energy shields. Explosive earrings complement her arsenal, detonating to disorient foes.

Professionally adept yet personally chaotic, Ayaka’s prowess in martial arts and tactical ingenuity clashes with her penchant for sake-fueled karaoke nights, impulsive luxury purchases, and habitual debt. Partner Mamoru Shimesu anchors the business, handling logistics while curbing her spending sprees and alcohol-induced tardiness.

A complex rapport simmers with Lieutenant Kozo Karino, a police detective who partners on cases. Though Ayaka deflects overt emotional acknowledgment, subtle flusters betray her concern for his safety, and their unspoken sparks occasionally sway her investigative choices.

Expanded narratives in a light novel and manga, including a New York confrontation against a codex-wielding sorcerer, reinforce her core traits: combat resourcefulness, alliances with eccentric allies like pyrokinetic teen Nanami Rokugo and barrier-master monk Suimei, and perpetual financial woes. Her leadership balances commanding authority with team camaraderie, directing specialists during missions that sometimes spiral into collateral damage. Despite flaws, her resolve to shield clients from supernatural dangers never wavers.