Niina Miyamoto is a cheerful, energetic, and outgoing girl who contrasts strongly with the shy and pessimistic Yuuki Uehara. In short, her personality is: Optimistic – She almost always looks on the bright side and encourages others. Bold and confident – She isn't afraid to suggest unusual ideas, like starting a fake relationship to improve their manga. Playful and teasing – She enjoys embarrassing or flustering Uehara with her body, but usually in a lighthearted way. Passionate – She works very hard toward her dream of becoming a professional manga artist. Kind and caring – Beneath her carefree attitude, she genuinely supports Uehara and gradually develops sincere feelings for him. Emotionally inexperienced – Despite acting confident, she has little real dating experience, making her awkward and vulnerable when her fake romance starts becoming real.