Kanae Suido, mother of Koki and Asumi and wife to Gori Suido, mayor of the 24th Ward, balanced her roles as an elementary school teacher and community volunteer with a fierce dedication to justice. Her commitment to uplifting the district drove collaborations with Gori, Sakiko Tsuzuragawa, and Kuchikiri—later known as 0th—to overhaul infrastructure and social systems, laying groundwork for the ward’s future.

Years prior to the central narrative, her death left behind a pivotal final directive: the creation of the KANAE system, a complex macroscopic computer designed to enforce peace and order. Though the system became integral to governance, its execution strayed from her ideals. Her legacy persisted through Sakiko Tsuzuragawa’s steadfast adherence to her vision, culminating in the integration of Asumi’s brain into the system after the young woman perished in a school fire.

Kanae’s early advocacy for technology as a societal force manifested in her contributions to the Hazard Cast prediction system and the Cornucopia infrastructure project. Yet her absence allowed ethical fractures to emerge, most starkly in Gori’s decision to harness Asumi’s consciousness for the system’s functionality. Her original principles—justice, communal welfare—continued to fuel debates over the KANAE system’s role and the moral compromises made in her name.

A flashback episode revealed her instrumental role in uniting the ward’s leaders and shaping the philosophical underpinnings of its technological progress. While physically absent, her influence lingered through the cascading effects of her aspirations, the systems she inspired, and the conflicts born from their distortion.