ONA
Description
Boris Meier is a supporting character in the anime B: The Beginning. He serves as an experienced inspector within the Royal Investigative Service, or RIS, and is a member of its Special Crimes Investigation Division. His long career has placed him in a position of authority and trust, making him a direct superior to younger officers such as Lily Hoshina.

In terms of appearance, Boris is a man of middle age or older, with his years of service reflected in his graying hair and receding hairline. His eyes are a calm shade of blue, and he is most often seen dressed in the standard, crisp uniform of the RIS, which he wears with a sense of duty and professionalism. His overall demeanor is serious and collected, projecting an image of a seasoned official who has witnessed a great deal over his career.

Boris possesses a personality that blends warmth and discipline. He is known for being accessible and acting as a good sounding board for his colleagues, yet he maintains a firm professional authority. While he can sometimes drift into rambling, age-related stories during conversations, this humanizing trait does not detract from his reliability as a leader. He is a stabilizing presence within the RIS, often gently admonishing more impulsive members like Keith Kazama Flick and Lily for their reckless actions, driven by a genuine concern for their well-being rather than simple adherence to rules.

His role in the story is primarily that of a mentor and a source of institutional wisdom. He is a veteran officer who, despite being close to retirement, continues to lead field operations with unwavering dedication. His deep understanding of complex criminal networks and the inner workings of the RIS makes him an invaluable advisor. He is one of the few people who is aware of the details surrounding past incidents involving his long-time colleague, Keith.

Boris's key relationships are central to his character. He shares a decades-long camaraderie with Keith Kazama Flick, forged through shared challenges and unshakeable loyalty. He stood by Keith after the murder of his sister and has helped him navigate subsequent crises, deepening the trust between them over years of collaboration. With Lily Hoshina, Boris adopts a protective, almost fatherly stance, guiding her professional growth while consistently prioritizing her safety during dangerous missions. This nurturing attitude toward the younger generation of officers helps cement his reputation as a dependable and steady leader.

Regarding his development, Boris remains a consistently reliable figure throughout the narrative. His primary arc involves his approach to his impending retirement, a milestone he confronts not with resignation, but with continued diligence and a sense of responsibility to see his current duties through. He serves as a narrative anchor, representing the established order and the weight of history within the RIS, contrasting with the newer, more volatile elements of the plot.

As for notable abilities, Boris does not possess any supernatural powers, which are present in the world of B: The Beginning. Instead, his skills are rooted in decades of practical experience. He is a methodical and perceptive investigator with a sharp, analytical mind that allows him to piece together clues effectively. His expertise lies in his profound familiarity with investigative procedures, his tactical knowledge during field operations, and his ability to provide sound, strategic counsel based on a lifetime of service. He is a capable field agent who has survived a long career, demonstrating resilience and competence without relying on any extraordinary abilities.