Hiroki Shibata, also known by the nickname Silver Dragon, is a central character in the 2014 film. He is the top student and leader of the Kurosaki Industrial High School, a position that marks him as the most prominent and powerful figure within his own school's delinquent hierarchy.

Throughout the story, Shibata is defined by a significant and traumatic history with another character, Hajime Fujiwara. The two were once friends who attended Kurosaki together, but their relationship soured due to Fujiwara's feelings of inferiority. In a desperate and violent act, Fujiwara poured kerosene on himself and set it ablaze, an act that resulted in severe burn scars on Shibata's left side. This incident sent Fujiwara to a juvenile detention center and left lasting physical and emotional marks on Shibata.

Shibata's personality is portrayed as calm and commanding, befitting his role as the head of Kurosaki. He is seen overseeing the school's freshman fight auditions, demonstrating his authority and the structured, hierarchical nature of his school's culture. He is not quick to instigate conflict; for instance, an initial encounter with Kazeo Kaburagi at a live house nearly turns into a fight, but the two separate without coming to blows, with Shibata showing a willingness to defer the confrontation to another time.

His primary motivation throughout the film is dealing with the return of Fujiwara, who has been released from prison and has aligned himself with a yakuza gang. Fujiwara begins attacking students from neighboring schools, including Suzuran, with the specific goal of instigating a massive conflict to take revenge on Shibata. When Shibata realizes Fujiwara is behind the escalating violence, he takes it upon himself to confront his former friend one-on-one. In this initial confrontation, Shibata is defeated and suffers a broken arm, which sidelines him and prevents Kurosaki from participating in the ensuing larger battles.

Despite his injury, Shibata plays a crucial role in the film's climax. As Fujiwara is about to defeat Toru Goura, Shibata arrives on the scene. In this moment of vulnerability, with his injured arm and his shirt torn open to reveal the old burn scars on his chest, Shibata delivers a pivotal statement. He tells Fujiwara that the scars were not Fujiwara's fault, but rather the result of his own youthful foolishness. This admission of shared responsibility and a desire to move past the pain changes Fujiwara's heart. The antagonist apologizes and retreats, marking a resolution to their long-standing and destructive conflict.

Regarding his abilities, Hiroki Shibata is clearly presented as a formidable fighter, enough to command the respect of an entire technical high school. However, his combat prowess is not the most prominent aspect of his character in the film. His significant fight with Fujiwara results in a definitive loss and a broken arm, emphasizing the story's theme that physical strength is not always the solution to deep-seated emotional wounds. His key relationships are defined by this rivalry with Fujiwara, his leadership over the Kurosaki students, and his brief but significant encounter with the protagonist, Kazeo Kaburagi, with whom he shares a mutual respect. He also has a connection to Ken Katagiri, an older figure who helps clarify the source of the school conflicts. Shibata's primary development is internal; he moves from being the victim of a past trauma to the agent who forgives and ultimately breaks the cycle of revenge that has defined his and Fujiwara's lives.