Ryūrō Hirotsu exhibits the composure and discipline of a seasoned mafioso, often speaking with a formal and respectful tone, even towards adversaries. Despite his calm demeanor, Hirotsu remains a ruthless and formidable individual, fully committed to the Port Mafia’s violent methods and objectives. His brutality is paired with a sharp wit, as he occasionally mocks his targets before eliminating them, all while maintaining a composed exterior. His nonchalance extends to his habits, notably claiming that a cigarette tastes best after “a job well done,” a sentiment that underscores his acceptance of the Mafia’s violent nature.

As a commander, Hirotsu demands diligence and discipline from his subordinates, expecting them to meet the high standards of the organization. He has no reservations about resorting to threats or direct action to enforce compliance, particularly when quelling disputes, such as the frequent quarrels between Gin and Tachihara. However, his leadership is also marked by a sense of respect for ambition and loyalty. This is evident when he supported Higuchi’s initiative to rescue Akutagawa, despite initially criticizing her impulsiveness. Hirotsu respected her sense of duty, ultimately joining forces with her, Gin, and Tachihara in the rescue mission.

Hirotsu’s loyalty lies firmly with the Port Mafia as an institution rather than its leadership. This was notably demonstrated when he confronted Ōgai Mori regarding the conspiracy behind the previous Boss’s death. Hirotsu admitted that the predecessor’s murder, while controversial, was ultimately beneficial for preventing chaos in Yokohama and preserving the Mafia’s stability. His allegiance to the organization was further emphasized during a confrontation with the Hunting Dogs, where he declared, “My soul is forever with the Port Mafia.”

Despite his strict and sometimes ruthless demeanor, Hirotsu is known for his protective and caring attitude towards his subordinates. Dazai once remarked on Hirotsu’s reputation for not easily discarding those under his command, making him well-liked among the Mafia. His concern is particularly evident in his interactions with his battalion leaders. For instance, he fiercely protected Gin from an attack by Tanizaki and expressed genuine relief upon learning that Tachihara had survived a dangerous encounter with the Hunting Dogs. This balance of discipline and genuine care makes Hirotsu a respected and trusted figure within the Port Mafia.

Ryūrō Hirotsu is a middle-aged man distinguished by his sharp and composed appearance. He has swept-back grey hair, a neatly groomed mustache, and a short beard that tapers into a spike. His violet eyes are striking, with his right eye adorned by a monocle, secured with a gold chain that adds to his refined demeanor.

Hirotsu’s attire reflects his formal and traditional style. He wears a long black coat over a crisp white dress shirt, complemented by a black bow tie. His pants and shoes match the dark tone of his coat, while a dirt-brown scarf, nearly as long as the coat itself, adds a touch of sophistication and practicality to his look.

A chain smoker, Hirotsu is rarely without cigarettes, keeping them readily available in his pocket, a habit that underscores his calm and methodical nature.

Not much is known about Ryūrō Hirotsu’s background or personal history. However, it is noted that he has been a loyal servant of the Port Mafia since the time of its previous Boss, showcasing his long-standing dedication and experience within the organization. His deep knowledge of the Mafia’s workings and traditions reflects his veteran status, making him a respected and formidable figure within its ranks.

Hirotsu’s ability, Falling Camellia (落おち椿つばき, Ochi Tsubaki?), allows him to cause anything he touches to fly backward with immense force. The power of this ability is substantial, as it has been demonstrated to stop and bend steel pipes effortlessly with a single touch. When used on living beings, it not only launches them away but can also inflict severe injuries, such as breaking bones. This ability makes Hirotsu a formidable combatant, combining precision and devastating force to overpower his opponents.

As the leader of the Black Lizard, Hirotsu is responsible for coordinating missions and ensuring the unit’s success. His leadership style emphasizes strategy and order, reflecting his traditional values and pragmatic approach.

Hirotsu’s unwavering loyalty to the Port Mafia makes him a trusted and dependable member of the organization. His experience and calm demeanor often serve as a stabilizing force during conflicts, particularly when dealing with the mafia’s younger and more impulsive members.

Hirotsu’s ability, Falling Camellia, grants him formidable destructive power, which he uses strategically in combat. His precise and calculated use of his ability highlights his disciplined nature and tactical mindset.

The name Ryūrō (柳浪) translates to “willow” (柳, ryū) and “waves” (浪, rō), evoking imagery of grace and fluidity, much like a willow tree swaying by the water. The surname Hirotsu (広津) combines “wide” (広, hiro) and “port” (津, tsu), potentially symbolizing expansiveness and connection, fitting for someone rooted in an organization as expansive as the Port Mafia.