Takashi Soga operates within the Ninth Department, a forensic division dedicated to resolving criminal cases by analyzing memories extracted post-mortem. As a new police academy graduate, he collaborates with a team navigating the moral ambiguities of accessing and interpreting victims’ final recollections.

His investigative contributions are tempered by the challenges of adapting to the unit’s rigorous demands. Marked by impulsivity, he frequently clashes with his own reactions in high-stakes situations—a contrast to his veteran counterparts’ composed expertise.

Interactions with peers underscore his role as a secondary yet integral presence within the group. Specifics about his personal history or narrative trajectory remain absent from documented records, and his background, character development, or participation in expanded storylines are not elaborated upon.