Hirokazu Sugimoto operates as a steadfast enforcer within the Paradise Butterflies, a motorcycle gang entrenched in Hiroshima’s underworld. The group aggressively clashes with rival factions to solidify territorial control across the city. Present in all five episodes, Hirokazu maintains a consistent yet enigmatic presence; his personal history, driving motivations, and interpersonal connections remain deliberately obscured. Existing records document only his contributions to coordinated gang operations, omitting individual backstory or narrative progression beyond collective endeavors.