The Shrines of Izanagi are small buildings dotting Anvaris, serving as holy sites for Oni to make offerings to Izanagi, a legendary Oni hero whom now serves Dekanas in the afterlife. They also serve as locations for Paladins of Dekanas to seek council with Dekanas, as the sites behave similar to that of a church.
It is often that one will find various forms of weaponry and precious items at these shrines. Its best not to touch these offerings, as the Shrine's priest may take offence to it.