Handa Sen is the "okami" (proprietress) of a long-standing restaurant in one of the lower parts of Tokyo. Though she is normally airheaded and loves to drink, she has an impressive mastery of a wide range skills, from cooking to ceramics to calligraphy. While the drama follows various events surrounding the restaurant, one of the series' highlights is its illustration of Japanese food and culture
Plot
Yu Aoi plays the title character in the new drama series, "Osen", which is set in a traditional restaurant-inn located in Tokyo's shitamachi (downtown) area.Osen is the okami (mistress) of Isshoan, which may sound strange for someone so young, but her mother, Chiho (Saori Yuki), has retired and left the place in her charge.
Osen is a bit of a bird brain, and she likes to drink as well, but she's a natural when it comes to cooking, and each episode focuses on several dishes whose preparation is described in detail.