Seiichirō Muta served as Mayor of Shibuya during the catastrophic Shibuya Drift, which displaced the district 300 years into the future. As head of the Disaster Response Headquarters tasked with crisis management, his quick-witted and intelligent nature was overshadowed by a consistent pattern of avoiding personal responsibility, frequently delegating undesirable tasks to subordinates. His leadership prioritized pragmatic survival, leading him to advocate negotiation with the hostile entities known as the Revisions as Shibuya’s best chance. This stance directly conflicted with Police Chief Ryōhei Kuroiwa’s preference for confrontation. While Muta publicly claimed his goal was returning all residents to their original 2017 timeline, this was a deception masking his true objective: securing only his own return. Every action and decision he made during the crisis stemmed from self-preservation. He perished during the events in the future timeline.