Hayato Sugimoto serves as a loyal subordinate to Yashiro within the yakuza hierarchy, distinguished by his orange-brown hair, freckles, and preference for formal suits. Tasked with operational responsibilities, he frequently drives Yashiro and other members during high-stakes situations, including an urgent mission to transport a stabbed associate to Kanji Kageyama’s clinic. His pragmatic demeanor surfaces in tense moments, such as openly challenging Chikara Dōmeki’s disguised presence in a police uniform during a confrontation.

Hayato’s unwavering allegiance to Yashiro anchors his role, emphasizing efficiency over personal exposition. His name—combining “falcon,” “person,” “cedar,” and “origin”—hints at symbolic ties to resilience and rooted identity. Interactions with figures like Kageyama remain strictly functional, prioritizing duty over deeper connections, while his background and motivations stay undefined within documented accounts.