Hotaka is the dedicated personal butler to Sumire Sakurakomi Tanabe. His background reveals a significant connection to the past, as he and the character known as Obaba were classmates and old friends. During their school years, Obaba served as the student council president while Hotaka held the position of vice president, where he used his sharp intellect to provide her with steadfast support from behind the scenes.

In his role as a butler, Hotaka is fiercely loyal and highly resourceful. One of his notable abilities is swiftly restraining individuals whom Tanabe designates as deserving of recognition, employing chains to ensure that his employer's plans proceed without issue. His personality extends beyond mere dutifulness, as he possesses a quirky and unclassifiable sense of humor. On occasion, he will perform impromptu comedy acts or showcase unique, spur-of-the-moment talents. However, his comedic efforts are consistently met with incomprehension from Tanabe, who rarely understands his jokes, leading to awkward and humorous situations.

A key aspect of Hotaka's character is his long-standing but unexpressed affection for Obaba. He developed feelings for her during their time together at school, yet he never found the courage to confess. These emotions remained hidden as he quietly left upon graduation, and he continues to carry this secret fondness for her into the present. His role in the story is therefore shaped by his dual identity as a capable and loyal servant to Tanabe, efficiently handling practical tasks with his chain-based captures, and as a man whose past holds an unfulfilled emotional connection. His combination of a brilliant mind, faithful service, and eccentric, often unappreciated, humor adds a distinctive layer to his interactions and the narrative.