This area resembling Yume Nikki's Windmill World
with pinwheels and an object in the center of them resembling a fern fiddlehead. A second ring of pinwheels southeast of the first surrounds a group of stone buildings, one of which is able to be entered.
The building's interior is very dark with an eerie, windy soundtrack. Going left or right (the area loops), Urotsuki will find some pendant lights hanging from chains. Going north, there will be more lights and the same type of pinwheels found outside of the building. At the top is a door marked with an ornate pattern above it that leads to the Radiant Ruins.