Kiyoko Shimizu is a character from the anime and manga series "Haikyuu!!". Throughout the series, Kiyoko's character develops from being a quiet and reserved manager of the Karasuno High School volleyball team to becoming more confident and assertive in her role. She becomes more involved in supporting the team and shows growth in her leadership skills as she helps motivate and encourage the players. Kiyoko's character development also includes moments where she faces her own challenges and insecurities, ultimately becoming a more well-rounded and integral member of the team.
