Kyoko is a stoic, intelligent, and mysterious girl. She has a calm demeanor and tends to be completely unfazed by most things, even at the sight of a dead body. This isn't because she doesn't have feelings, but because she is good at hiding her feelings. As a detective, Kyoko sees things objectively and doesn't jump to conclusions. Behind Kyoko's stone-cold personality, she seems to easily get emotionally upset, which is masked by her strong will, and she is capable of building strong bonds.