Chigusa Mitama is a minor character from the anime A Centaur's Life. She is one of the Mitama triplets, alongside her sisters Chiho and Chinami, and is distinguished from them primarily by her physical appearance. Chigusa is depicted as a young girl with shoulder-length blonde hair and red eyes. Like her sisters, she possesses animal ears and a tail, categorizing her as one of the various demi-human species that populate the series' world.

While the triplets appear as a group, Chigusa is individually identified through a specific encounter involving the protagonist, Himeno Kimihara. In this scene, Himeno and her cousin Shino meet the student council president Manami Mitama, who is chaperoning her three younger triplet sisters, including Chigusa. The situation draws attention to the triplets not for any particular action of their own, but because of behavior attributed to them. Shino becomes defensive when the topic of how the triplets engage in kissing others is raised, a conversation that is further complicated by commentary from other characters, Mitsuyo and Inukai. This event highlights Chigusa's role as one of a set of identical siblings whose collective actions can be a point of social observation and discussion within the story.

The narrative does not delve deeply into Chigusa's individual personality, motivations, or development, as she primarily functions as part of a trio. Her presence expands the world of the series by illustrating the dynamics of a large, non-traditional family and the everyday social situations that arise from it. Information regarding specific abilities unique to Chigusa or a distinct arc of personal growth is not present in the source material. Her key relationships are defined by her connection to her two triplet sisters and her dynamic with her older relative, Manami Mitama, who serves as the student council president and is seen supervising them.