Nobara Kitajima is a supporting character in the anime Jewelpet Happiness. She is a middle school student attending the Jewel Academy, where she serves as the assistant and close companion of the fellow student Marie. Nobara is known for her diligent habit of gathering rumors and information around the academy, which she records in a trusted notebook. She possesses a knack for hiding and observing unnoticed, making her an effective intelligence-gatherer for Marie. Nobara consistently praises and supports Marie, even when Marie does not accomplish what she set out to do.

She is the human partner of three Jewelpets: Luna, Io, and Alex. In appearance, Nobara has brown hair cut into a bowl shape with two braids and bangs that cover her eyes, leaving their color unknown. She typically wears the Jewel Academy uniform. Her motivations are primarily tied to assisting Marie and keeping track of events and gossip at the school. While she does not undergo prominent personal development within the series, her role reinforces Marie’s subplot and contributes to the slice-of-life atmosphere of the academy. Her notable abilities include stealth and information gathering, which she uses to support her social circle and stay aware of happenings in her environment.