Shin Chan's Kindergarten

Shin-chan's teacher. Age 24. She is always in bitter rivalry with Ume Matsuzaka. However she unhesitatingly supports Matsuzaka in certain critical situations. "Yoshinaga" is her maiden name. Her new last name is "Ishizaka" after being married to Junichi Ishizaka since July 7, 2000. Before him, she didn't have much luck with her boyfriend, often commiserating with Matsuzaka about their lack of love life.

Arch-rival of Miss Yoshinaga, teacher of the Rose class. Age 24. Single. Likes to live stylishly in public but she actually struggles to save her money for accessories and lives in a very cheap, dusty apartment. Although she always says she is "tired of Futaba Kindergarten (especially Shin-chan)" and plans to move out to a better school, she never seriously intends to do it. She even rejects so harshly a man who offers her a better job in another school and mocks Futaba Kindergarten. Despite her rivalry with Yoshinaga, deep down she cares for her and helped her reconcile with her future husband. She has seriously dated another man named Tokurou Gyouda before. He is her chiropractor and they first met at his clinic after she becomes drunk and fell off a flight of stairs at a park the night before. However, her boyfriend had to go to Chile for a Matazuresaurus dinosaur fossil excavation. The drama of such a dilemma was shown in a three-episode series in 30 minutes where the situation ended up in that she stays in Japan but rushes with the whole kindergarten to the airport to see her boyfriend before he departs.

The principal of Action Kindergarten and is often referred to as "Enchō" (園長), which means "principal." His Yakuza-like appearance is often misunderstood by the people in the neighborhood, which often acts as a recurring joke in the series (often worsened by Shin-chan by calling him "Kumichō; 組長 = Boss of Yakuza). Actually he has a tender heart and good attitude. He has masqueraded himself as a superhero called Enchoman but Shin-chan found out his true identity easily. He hoped to continue to keep his real identity a secret by letting Shin-chan join his troupe and telling him not to tell anybody. But he quit after others found out his real identity. In the FUNimation dub, he disguises under the name Ench-Man and has a Latin accent.