Shiba Kirihara is a character from the anime Hotel Inhumans. He serves as a concierge at the titular hotel, an establishment exclusively catering to assassins, having been transferred to this location from the hotel's London branch.

In terms of personality, Shiba Kirihara is characterized by a notable romantic infatuation with a fellow concierge, Sara Haizaki. His behavior is heavily influenced by this persistent crush, leading him to follow her around with a dogged persistence. This particular quirk in his demeanor has earned him the nickname Koshiba, which translates to "small Shiba," as his actions are reminiscent of a small Shiba Inu dog trailing after its owner. Beyond this prominent trait, he is also described as possessing a certain warmth that is perceptible in his way of being and thinking.

His primary motivation within the story appears to be driven by his feelings for Sara Haizaki, as his actions and his nickname are directly linked to his pursuit of her. His role is that of a concierge at this unique and dangerous hotel, placing him in a position to interact with the assassins who are the guests, as well as with his fellow staff members, including Sara Haizaki and another concierge named Akira Hoshi. His development, as suggested by comments related to the role, involves an exploration of his personal philosophy and the warmth he exhibits, hinting at layers beneath his seemingly simple infatuation.

Regarding his background, it is established that he was transferred to the main setting of the story from the London branch of the Hotel Inhumans. No specific notable abilities, such as combat skills or magical powers, are detailed in the available information. The information primarily focuses on his role, his key relationship with Sara Haizaki, and his distinct personality trait of following her, which defines his presence in the series.