Berkeley Rose emerges as a recurring figure who openly pursues a romantic interest in Randy "Ryo" Maclean, a central series protagonist. As a police officer, he navigates both professional duties and personal entanglements with Ryo and colleagues. Known for his boldness, he repeatedly attempts to kiss Ryo despite the latter’s visible unease and the simmering annoyance it sparks in Ryo’s partner, Dee Laytner, fueling persistent interpersonal tensions.

His demeanor combines confidence with unapologetic candor in voicing his desires, though his personal history and background are unspecified. He is distinguished by his glasses and openly identifies as bisexual within the LGBT+ community. While his narrative function hinges on sparking conflict via relentless romantic overtures, his role remains focused on generating friction through these advances, with no documented expansion into spin-offs, films, or OVAs.