Dario, a young archer with striking turquoise eyes and brown hair, serves as a steadfast subordinate to Kyōshirō Shuragami within the Moriya Clan’s criminal network. Renowned for his precision with a bow, he executes covert missions—ambushing cargo shipments to incriminate rivals and advancing Shuragami’s ambitions alongside fellow retainers Genjou and Guen. His androgynous appearance and cross-dressing habits often spark momentary uncertainty about his gender, though his male identity remains rooted in his past. A tragic flashback reveals Dario’s origins: shaped by betrayal and loss, he was rescued by Shuragami, forging an unshakable bond. This loyalty drives his involvement in pivotal clashes, from the Gekkenkai fencing tournament to thwarting Buhei Hiramatsu’s syndicate. During the clan’s climactic struggle, Dario helps expose Hiramatsu’s plot to bomb the Imperial Palace, enduring a brutal injury that costs him an arm. Despite this, he persists in aiding the group’s efforts. His dynamic interactions with allies like Senri Kuroki and Gorō Fujita underscore his resourcefulness and devotion. As Shuragami’s quest for vengeance intensifies, Dario remains a pivotal figure in dismantling Hiramatsu’s empire, his resolve unbroken even in the face of irreversible sacrifice.