True to her theme color, Sunny is by far the most cheerful and energetic. She's easily excitable and possesses a noteworthy love of all things cute or "kawaii" as she would put it. Though she can come off as high-strung and boisterous, Sunny simply has an expressive personality and a strong enthusiasm for the things she loves. She can be somewhat awkward in tense situations, but she's also highly sensitive to other people's emotions and will do what she can to alleviate the problem.