Kaoru Okita, progeny of the historically reimagined Soji Okita, operates as a Mobile Shinsengumi agent combating supernatural threats. Her combat expertise blends versatile weaponry with shikigami bound to the Four Auspicious Beasts—Genbu, Byakko, Seiryu, and Suzaku. A recurring comedic thread arises from her acute sensitivity toward her breast size, sparking tension or humor when mentioned.

Born to a kitsune mother who abandoned her, citing incompatibility with humanity, Kaoru’s half-human lineage includes a half-kitsune older brother. This maternal desertion and hybrid heritage fuel internal conflict, shaping her struggle to reconcile identity and forge connections.

Her romantic arc centers on Ryuunosuke Sakamoto. A fabricated confession—orchestrated by her mother impersonating Ryuunosuke to sabotage a mission—cements her lingering affection. This unspoken crush intertwines with self-doubt and rivalry, particularly when Ranran emerges as a romantic contender.

During a mission, cursed dumplings grotesquely inflate Kaoru and teammate Toshie Hijikata. While Kaoru bristles at her immobilized state, Toshie’s pragmatic resilience highlights their contrasting dispositions. Though the curse lifts within an hour, a leftover dumpling later reignites chaos for another ally.

A pivotal exchange with Oryo, Ryuunosuke’s mother, probes societal biases against non-humans. Kaoru tentatively questions Oryo’s stance on her potential relationship with Ryuunosuke, only to receive a nonchalant dismissal born from misunderstanding—a subtle nod to broader themes of tolerance.

Kaoru’s narrative balances martial prowess with vulnerability, particularly when confronting her lineage or insecurities. Bonds with Ryuunosuke and comrades evolve through shared trials, framing her growth as a dance between duty, self-acceptance, and the nuanced evolution of trust.