Ryuuji, a yakuza member with a pompadour and a sprawling Buddha tattoo across his back, frequents saunas where his imposing presence commands attention. Beneath his hardened exterior lies a fiercely protective devotion to his daughter Aiko, whose potential marriage threatens their cherished annual Hinamatsuri traditions—a loss he resists with emotional intensity. His life is marked by a subordinate’s betrayal that led to imprisonment, a history he references with wry parallels to legendary treacheries.

Mistaking another for the heir of a yakuza patriarch, Ryuuji deflects minor conflicts with excessive deference, apologizing reflexively despite his own authority. His marriage to Shizuko thrives on mutual resilience, their bond forged through unspoken loyalty. A skewed worldview twists virtuous acts into criminal intrigue: stigmata become gang-related wounds, altruism echoes underworld codes.

Central to his narrative are raw, vulnerable moments—tearful pleas to preserve Aiko’s presence, internal struggles to balance overprotective instincts with her independence. Across pivotal chapters, his interactions oscillate between misguided reverence for assumed power figures and tender, unwavering commitment to family, framing him as a paradox of criminal grit and heartfelt vulnerability.