Kyouko is a very energetic and popular person who always creates a happy atmosphere around herself. She is a hard worker in all aspects of her life, and, according to Izumi Miyamura, she scores above 90% on all her tests. When nervous or embarrassed, she tends to switch to a violent state. This is seen when Kyousuke asks if Miyamura is her boyfriend, resulting in her turning red and shoving a hot ladle into his face.