Tsuneo Tomizawa leads a military-aligned scientific institute researching interdimensional matter transfer, overseeing Takuya Shirakawa’s analysis of the Hokkaido Tower’s capacity to displace local matter with parallel-universe counterparts. His discoveries identify Sayuri Sawatari’s entanglement with the Tower’s dimensional energy systems, directly correlating to her comatose state. Initially concealing these findings from Takuya, he later allies with Okabe of the Uilta Liberation Front to disclose Sayuri’s status and whereabouts.

Tomizawa’s partnership with Okabe stems from their shared past collaborating on aviation projects in their youth, a dynamic echoing the younger generation’s interplay between Hiroki and Takuya. This generational parallel underscores recurring themes of ambition and idealism. By supporting the Front’s mission to demolish the Tower, Tomizawa navigates dual roles as a scientist and covert political strategist.

His choices catalyze pivotal events, including granting Takuya access to Sayuri and aiding efforts to dismantle the Tower. Though his personal motives remain opaque, his strategies prioritize pragmatic resolutions to the Tower’s existential risks and the escalating tensions between the Union-controlled North and US-aligned South.