Koka(甲賀) is located southern Shiga Prefecture. It is known as the land of Koka Ninja and Shigaraki Ceramics. There are many Ninja related spots in this city. Especially, Koka Ninja Village is the largest Ninja museum in the world. Also, Koka is used to be a part of Tokaido Road. Therefore, the are two post town that has still view of Edo period. Not only Tokaido Road, but also Hino Town is also known as the Omi Hino Merchant Town that also has many traditional houses. It is located on the deep side of mountains with many beautiful natures.