Kobori is a fairy of earth who performs as a member of the Elementario show at Amagi Brilliant Park. Her demeanor is generally stoic and composed, and she often takes on the role of a mediator, attempting to maintain peace among the other elemental fairies. Despite her calm and levelheaded personality, she is notably the least coordinated member of the group, requiring extra effort and practice to master the dancing routines that are part of her performance. This contrast between her serious nature and her struggles with physical coordination is a defining trait. She is somewhat introverted and reserved in social situations. As a fairy of earth, she belongs to a group of magical beings that immigrated from the realm of Maple Land, and she is committed to her duties in helping the park entertain visitors. Her appearance includes very long brown hair and brown eyes. Throughout the series, she works alongside her colleagues in the Elementario, contributing to the park's daily operations and special events while managing her own challenges in keeping up with the performances.