|Relatives||Ryouko Miyazono (wife)|
Kaori Miyazono (daughter; deceased)
|Japanese Voice||Tōru Ōkawa|
|English Voice||Patrick Seitz|
|Anime Debut||Episode 12: Twinkle Little Star|
Yoshiyuki has dark brown hair and dark brown eyes. He has a broken pencil moustache.
He loves and cares for his daughter deeply and the same goes for his wife. Kaori also said that her parents were Kousei's fans. Despite the fact that he cares for Kaori he accepted her decision to opt for the surgery which might kill her if it failed and was happy that Kaori wanted to stand on her own feet again.
Shigatsu wa Kimi no Uso
Yoshiyuki owned a bakery called “Ma Fille Pâtisserie” with his wife, which was often visited by Kaori and her friends.
- The name of his bakery, “Ma Fille” translates to “my daughter” in French.
- Yoshiyuki (吉行) = Fortune Line
- Miyazono (宮園) = Palace Garden