TV-Series
Description
Sōichirō Hinamura, nicknamed "Yondaime" or "Sou-san" by subordinates, founded and leads Tokyo’s NEET yakuza faction, the Hirasaka Group. His stark white hair, piercing grey eyes, and perpetually fierce expression mirror his reputation as a steel-hardened, dangerous figure. The group’s identity is marked by shirts and Hinamura’s own left-shoulder tattoo bearing a distinctive butterfly emblem.

He co-founded the organization years ago with close friend Renji Hirasaka, but their partnership shattered after roommate Hisan’s death, severing their sworn brotherhood. Hinamura reacts with volatile fury to any mention of Renji, though the rift’s exact catalyst remains undisclosed. Under his command, the group seized significant control of Tokyo’s underworld. While shifting toward legitimate enterprises to avoid unsustainable "shady stuff," they enforce territorial rules with extreme violence, particularly against drug dealers.

Hinamura’s physical prowess exceeds professional boxers, and he employs ruthless interrogation through severe coercion. His fiercely loyal followers execute orders without question but lack technical skills, leading them to dub Narumi Fujishima "God Hand" for basic tasks like virus scans.

He maintains a strategic alliance with Alice’s NEET detective agency, frequently hiring them for cases like tracing the drug "Angel Fix" and providing direct, dramatic aid during critical moments. Initially dismissive of Narumi—mocking him as "Gardening boy" due to his school club—Hinamura evolves into a mentor, warning him of their world’s dangers while gradually acknowledging his reliability.

Contrasting his hardened persona, Hinamura expertly repairs damaged stuffed animals for Alice, responding swiftly to her requests. He shares a profound history with NEET detective Hiro, viewing him as an unofficial brother and trusted partner within the gang.