Created by Yoshiwo Nakae (author) and Noriko Ueno (illustrator), the series has sold over 5 million copies in Japan since its debut in 1974. The heartwarming and humorous interactions between the little mouse in his red vest — knitted by his mother — and various animal friends have been cherished across generations.
The anime adaptation is produced entirely in full CG to faithfully capture the delicate, simple illustration style of the original picture books. Production is by Creadom8, with direction by Nobuyoshi Habara.
Cast:
Nezumi-kun and others: Kenjiro Tsuda
Nemi-chan and others: Mamiko Noto
All characters are voiced by these two performers.
Theme Song:
"Good Luck! My Friend feat. Muro Tsuyoshi & Sakana-kun" by Tokyo Ska Paradise Orchestra
Broadcast:
NHK E-Tele, starting April 4, 2026, every Saturday at 9:30 AM.
Official site: https://www.poplar.co.jp/pr/anime-nezumikun/
©Yoshiwo Nakae / Noriko Ueno / Poplar Publishing