TV-Series
Description
Fumika Mikawa developed dissociative identity disorder due to severe childhood abuse by her father, Kirameki Mikawa, an artist obsessed with beauty. Kirameki used glass pens to carve draft manuscripts directly onto her skin, treating her as a writing surface. This trauma fractured her identity, creating two distinct personalities: the original, shy, and reserved Fumi, and an alternate persona, Mika. Mika emerged as a protective mechanism to endure the abuse.

Unlike typical shigofumi carriers who are deceased spirits, the Mika persona physically manifested as an independent entity resembling Fumika but aging normally. She appeared in a retro postal uniform, wielded an ornate handgun, and was accompanied by a sentient staff named Kanaka. Her duty involved delivering shigofumi—posthumous letters conveying unresolved truths or emotions from the dead to the living, often forcing recipients to confront painful realities. Mika maintained a detached, monotonic demeanor but exhibited intense agitation around cats.

A pivotal event occurred when Kirameki threatened Fumika while reminiscing about her mother, Kirei. Triggered by this, the Mika persona shot Kirameki using her delivery firearm. Overwhelmed by guilt and trauma, the Fumi personality then withdrew into a comatose state lasting three years. During this period, only the Mika persona remained active, continuing shigofumi deliveries while periodically visiting Fumi's hospitalized body.

After Fumi awakened from the coma, tensions escalated. Fumi blamed herself for the shooting and sought isolation, while Mika demanded retribution, insisting Fumi should kill her for committing the act. This conflict culminated in a physical confrontation at a shrine. There, Fumi symbolically "shot" Mika with the same gun. This act did not eliminate either personality but represented Fumi reclaiming agency over their shared existence. Subsequently, Fumi resolved to legally confront their father by pressing charges for child abuse, signaling a unified commitment to accountability and healing.

Throughout this journey, both personalities gradually acknowledged their interdependence. Though operating as separate entities, they recognized their shared origin and the necessity of coexistence rather than fusion or annihilation. Fumi's decision to pursue justice demonstrated her newfound resilience, while Mika's role evolved from a protector into a reconciled aspect of Fumika's complete identity.