Twenty-four-year-old country bumpkin Aiko is a new teacher who has arrived at a new town and a new primary school. When nervous she blurts out her local dialect. This seals her nickname and reputation. Nonetheless, she is determined and strives to do her best for her students. She is an inspiration soon.
Sakai is a city near Osaka by the bay famous for its swords in the old days and kitchen knives today. Norio is an antique dealer in the city. Sasuke is a potter in the city. Seventeenth century tea master Sen No Rikyu appears before them one day.
Reporters Takehara and Tsumura Aki work for the magazine "Shukan Dodongo". Their chief editor tells them to monitor Okase Shohei who is an ex-bureaucrat and was recently released from prison. 7 years ago, Shohei was arrested for embezzling 1 billion yen. The investigation seven years ago was able to track down 700 million yen but unable to locate the remaining 300 million yen. Now, the chief editor is sure Shohei will go to wherever the remaining 300 million yen is hidden.
On September 9th, the day of the Katakai Fireworks Festival, high school student Hana comes home from the hospital after six months of treatment for leukemia. She then discovers that her older brother Taro has become a social recluse. Taro used to be tender, smart and proud of his younger sister, but now he even turns his back on her and stays in his room. With Hana's help Taro slowly opens up to the world again. Then, with winter approaching, Hana has a relapse with her leukemia. Taro comes to the hospital everyday to visit Hana and soon learns that the Katakai Fireworks Festival is a symbol of happiness for Hana. Taro then takes the initiative to make Hana happy and approaches the town's youth group once more for admittance.
