The story follows an elementary school girl named Chitose who wildly pursues the love of Hiroshi, an older young man who works at the town hall next to her school.
Misaki has trouble picking out a library book for Book Week.
Asako goes on a diet, which gives Chitose the idea to go on one herself.
Chitose and Asako go to a restaurant with Hiroshi and get on each other's nerves.
Chitose and Mika argue over who gets to give Hiroshi their chocolate first and end up incurring Misaki's wrath.
Asako teaches the girls how to make handmade Valentine chocolates.
Hiroshi describes a typical day in his life.
The gang visit the temple for the New Year.
Chitose and co. go about giving New Year's greetings whilst Asako and Kouhai spend the day drinking.
Chitose encounters some disturbing mementos of her mother's whilst spring cleaning.
Chitose and Asako think of christmas presents to give to Hiroshi.
After an awkward incident on the way to school, Chitose and Hinako try to help Misaki to behave more like a girl.
Chitose gets a new rival with the appearance of Hiroshi's Neice, Mika.
It's sports festival day at the school.
When Chitose Sakuraba, an eleven year old girl, declares her "hots" for Hiroshi Kashiwabara she plans to skip class to go see him, but her teacher Asako Fuji stands in her way.
At a summer festival in town, both Chitose and Asako end up fighting when Hiroshi appears.
Hinako picks a curious outfit for the swimming pool.
The girls try to learn Asako's weakness.
Chitose struggles to come up with a wish for Tanabata.
Chitose is constantly foiled in her plans to escape to the town hall to see Hiroshi.
Hiroshi's attempt to get Chitose to play with her friends instead of bothering him backfires when she brings her entire class to his office.
The school practises a fire drill.
Asako makes some curious observations during her class' drawing lesson.
Hinako tries on various bits of cosplay.
Misaki tries to figure out what to do for Father's Day.
Chitose tries to figure out the best way to attract someone.