It's at the map where there are floating train tracks. From the 2nd exit point, go down from the lower right and proceed all the way to 188/118(?) map. The items must be farmed from 2 monsters, the sickle mantis and the giant oil drum monster. Good luck farming.
Everything stemmed from Chaos, Aligned to Cosmos, Brought forth by Space, Woven with Time and Governed by Gravity.