The series follows Anzu, a kindergarten girl who is in love with her teacher and tries to win his affection but always fails.

However, he is clearly more interested in the pretty Yamamoto Nanako, a fellow kindergarten teacher who supervises the class next door.

Hanamaru Kindergarten was serialized by Square Enix in the bimonthly Young Gangan magazine,[3] and the chapters collected in tankōbon.

[4] Outside Japan the series is licensed in Taiwan by Sharp Point Press[5] and in Hong Kong and Macau by Jade Dynasty.

The agitated Tsuchida gives Anzu permission to explore the kindergarten with her new friends Koume and Hiiragi.

Anzu, Hiiragi, and Koume put their heads together to create a strategy of attack, desperate not to lose to Yamamoto.

Anzu wants to have a fairytale romance with Tsuchida, but he breaks her heart when he calls it unrealistic.

Unknown to the Hanamaru Detective Brigade, Sakura was also keeping an eye on Anzu, and unwittingly defended Tsuchida from two Yakuza who merely reprimanded him for littering.

Anzu is feeling pleased with herself when Tsuchida calls her cute when Yamamoto shows up in her (rather disaster-prone) swimsuit.

The kindergarten's summer vacation starts the next day, and Sakura suggests they take a trip to her hometown with Hiiragi, Koume, and Tsuchida.

As Hanamaru went to the park to take a break, Anzu, Hiiragi, and Koume were playing nearby, and saw the depressed manga artist.

That favor was to obtain Panda-Cat-related things in order to help Hanamaru become inspired to finish the manga he is working on.

That night, Nana was really planning to make it up to Tsuchida-sensei, not because she understands that he likes to have dinner with her, but because she thought he was hungry that time (as Mayumi surmised).

Koume, on the other hand, cannot choose what she wants to become--whether to be a bride, a baker, a florist, or a toy-store employee.

He was there because the school field day is fast approaching, and Koume wanted to join the footrace.