"Teppan" ("Steel Plate") stars newcomer Miori Takimoto as 18-year-old high school student Akari, a happy, easygoing girl who lives with her happy, easygoing family in the coastal town of Onomichi, Hiroshima Prefecture. Her main passion is playing the trumpet in a school club. Akari's little world is thrown for a loop, however, when an older woman from Osaka named Hatsume (Junko Fuji) shows up in town and reveals to Akari that she is her real grandmother. Akari's mother died when she was very young and she was adopted by the family in Onomichi. In fact, the trumpet she plays was her real mother's. Akari doesn't get along with Hatsume, but after she graduates she goes to Osaka to live with her and look for a job.

"Teppan" is the story of Akari who, with the help of her grandmother, decides to open an okonomiyaki restaurant. It is set in the cities of Osaka and Onomichi in Hiroshima Prefecture.