The special revolves around a talking dog named Don Matsugorou and his family. Mr. Matsuzawa is a novelist who lives in Chiba Prefecture. Only his daughter Kazuko knows that the family dog, Don Matsugorou, can talk. Don is wounded in a fight with the neighbors' dog, King, a nouveau-riche mongrel with ideas above his station. In addition to this, Don Matsugorou must save Chotaro, a fellow dog who gets kidnapped, and might even find love in another dog, Ogin, along the way.

He was represented by Tokyo Actor's Consumer's Cooperative Society and after by Aoni Production.

He passed away on January 27, 2014 at the age of 82 due to ischemic heart disease or coronary artery disease.

[Profile](https://www.aoni.co.jp/search/nagai-ichiro.html)