The prefecture is located in the northern part of the Kanto region of Japan. It is a major agricultural centre, with strawberries and kanpyo (dried gourd) as specialities. It is also the centre of Japan's automobile industry.

Eitan is a character created by the Ichigo-chan Berry Project Transition Committee, a coterie of people in Tochigi Prefecture, as part of an activity to create and develop a moe character that would represent Tochigi Prefecture. She was designed in the image of strawberries, which are widely produced in Tochigi Prefecture.

She is a princess from the Land of Strawberries, which is said to exist in another world that is not Earth. She came to this world to tell people about the wonderfulness of strawberries. She is particularly fond of strawberries from Tochigi, Japan. She appears at events all over Japan to promote strawberries.