From MangaHelpers:

Mori Hatsune is going to live with her grandma while she attends university in Tokyo. She is amazed in Tokyo by the attitudes towards old and new things, and the strict adherence to the 3 R's (reduce, reuse, and recycle). Also, up until now, she's spent all her free time helping her parents with their tempura shop, and she's excited to finally have time to find out what she wants to do with her life. However, no one told her that to earn her keep, she's going to be expected to help out with her grandma's electric appliance shop! Hatsune starts her new life, attending university and helping out the other employees in their work. [tethysdust]