Kyoko is a stoic, intelligent, and mysterious girl who tends to hide her feelings. She has a calm demeanor and tends to be completely unfazed by most of the events that occur, even at the sight of a dead body. At the beginning of the game, Kyoko often keeps her distance from the other students while investigating. Prior to the investigation to find the way out with no casualties, Kyoko doesn't seem to cooperate with the other students and does most of the investigating by herself. She plays major roles in solving mysteries of the culprits in class trials and is also one of very few students that see things objectively and doesn't jump to conclusions in the trial, making her a valuable ally to Makoto.

Kyoko is very very sensitive regarding the subject about the Hope's Peak Academy's headmaster (who later is revealed to be her own father), going as far as to even lose her cool and react with anger when Alter Ego mentioned the possibility of him being the mastermind. She also doesn't like it when people keep secrets from her, as Makoto finds out.