Water has been considered the source of life since ancient times and an indispensable part of people's lives. The Terai Seki in Ono City, Hyogo Prefecture, has safeguarded such precious water resources. It is said that the founder of Jodo-ji Temple built this weir, which has been supplying water to the estates of Todai-ji Temple.
The Terai Seki has a meaning beyond just being a waterway. At the end of the Edo period, thanks to the water control by temples, it avoided a major crop failure, and from then on, this weir was called