Nan Harding is the new student at Mr. and Mrs. Bhaer's school. Everyone thinks that she is a pain in the head, but not Mrs. Jo. Together with the other kids, they all embark on their personal adventures and misfortunes while learning in school.

• Hazuru Matsukura
• Eiko Yamada
• Yosuke Akimoto
• Yuriko Fuchizaki
• Kyōko Minaimi