When the party goes after Laude who went into the Moon Culvert with Reisha they come across another Heart of Gaea. Luca then seems to switch to Nenesha with her saying that the Heart of Gaea is her body.
Considering that Nenesha said it was her that would mean this wouldn't be a Heart of Gaea Frelia may have made to create the land of Metafalss, so what is Nenesha's Heart of Gaea for? and why was it even created as in Infel's diary she wrote that the Divine Messenger killed Nenesha