Takayuki Kurihara operates within near-future Tokyo's societal ruins. A military veteran, his combat experience proves vital to a resistance group challenging the dominant Koryukai gang. He actively contributes to strategic planning and spearheads combat operations targeting the gang's stronghold.

He fights alongside an ensemble formed in Shinjuku's shadows, including Takateru Suga, Miyuki Mamiya, Ryo Hamura, Father Owen, and Sister Saeko, all united against the Koryukai. Within this collective, he functions as a secondary figure supporting the group's unified resistance effort.

Available information notes brown hair but provides no further details on his appearance, personal motivations, relationships, or character development. His documented actions center on the group's intense assault on the Koryukai compound.

His presence and role remain consistent across the core light novel series adaptation and its subsequent OVA release. He does not appear in spin-offs, sequels, or expanded media. His involvement concludes with the resolution of the initial conflict against the Koryukai and its leader.