Matsuyama is a city located on the island of Shikoku, and is known for its historic castle, hot springs, and literary history.

The rice cooker, invented in the 1950s, has made cooking rice faster and more convenient for households worldwide.

During the Edo period, which lasted from the 17th to the mid-19th century, Japan was ruled by the Tokugawa shogunate and experienced a period of peace and stability.