|Anime debut||Valiant Fight|
|Relatives||Yukine Miyazawa (sister)|
Kazuto Miyazawa (宮沢和人, Miyazawa Kazuto) is the deceased brother of Yukine Miyazawa. He was a delinquent, but was kind to his sister.
It is said that he was the only person who could take on Tomoyo in a one-on-one fight.
Clannad ~After Story~Edit
Kazuto was involved in an motorcycle accident escorting his friends to home, after the accident, Kazuto was taken to the hospital, but despite the doctors's efforts, unfortunately he died.
No one else knew this because Yukine and her brother's gang didn't want the word to get out their leader is dead. When everyone learns the truth, they decide to end the rivalry. Yukine, Nagisa, and Tomoya, along with both gangs, visit his grave.