Kayano is one of the most kind, cheerful and passive members of the class who frequently acts as support in assassination attempts with her ability to assess the situation and adapt herself to them. Despite her apparent passive nature, Kayano is an empathic and strong-willed person who can be extremely determined to the things that interest her or cares about, such as her love for sweets, and more tragically, her sister's fate. She also experiences a severe complex when it comes to her sex appeal, loudly voicing her discomfort when being around large breasted women.