Nina Dōjima is a student at Naniwa World's No. 1 Academy in Osaka, where she pursues her idol career with a focus on comedy and making others smile. Originally from Tokyo, she moved to Osaka relatively recently and still retains a Tokyo dialect, but she chose the city because it allowed her to combine her love of entertainment with her goal of bringing laughter to audiences. As a pop-type idol, her preferred brand is Mecha PaniQ, and her energetic, cheerful personality is central to her performances. She has a strong passion for comedy and idol culture, which she discovered after a childhood spent taking her studies very seriously and rarely smiling. This transformation drives her daily practice and her aim to earn as many laughs as possible through her stage presence. In the crossover film Aikatsu! x PriPara THE MOVIE -Deai no Kiseki!-, she appears alongside idols from both the Aikatsu! and PriPara worlds, participating in the collaborative festival and contributing her lively singing and comedic flair to the joint performances. Her singing voice is bright and spirited, reflecting her upbeat nature and her dedication to creating a joyful atmosphere for her audience. Her role in the story is as a supporting idol who helps bridge the two groups through her enthusiasm and willingness to connect with others. Key relationships include her fellow students from Naniwa Academy and the idols she meets from Starlight Academy and Para Lodge, although the film focuses on the collective miracle of the encounter rather than deep individual bonds. Her development from a serious, reserved child to a confident, laughter-driven idol is a defining aspect of her character, and her notable abilities lie in her comedic timing, vocal expressiveness, and the ability to uplift a crowd.