"A whole new truth will reveal when Saphie discovers the Yggdrasill, the World Tree where her broken chrysalis remained, begins to rot. In order to fix the bridges that connect the worlds she travelled, especially her main homeland Mobius, she will have to collect  nine nexus gems to rebuild them. The nexus gems are the ultra powered pieces of her big homeworld central birthstones, blessed by Iris, the Greek rainbow goddess. This also grants her new transformations that will aid her along the way.

But she can't handle all of it alone. She will need the assistance of her friends and twin to save the World Tree, save worlds and memories, and stop a mysterious enemy who wanted to steal the Isidar Mythrim, Saphie's hybrid birthstone, to destroy the heaven of the Gem'yanas, the renewed Neoiusn Dieus Lyand'Aros (The New God's Land)..."