The Gale and the Root. The Bonded Realms Saga, #1

Come visit Aureth, a world once held together by a living lattice of magic-where every bond of love, loyalty, or friendship shaped the power of the realms themselves. Harmony has shattered, six rival realms stand divided, their magic fractured, their histories rewritten, and their people starved for connection. The Bonded Realms Saga begins at the moment this ancient Bond stirs again-awakening forbidden soulmates whose love could either heal a broken world or ignite a war that consumes it.
The first book of this six-book saga, The Gale and the Root, launches a sweeping elemental romance where an Air-born analyst and an Earth-bound guardian collide at the edge of a dying valley. As political doctrines fracture and the land itself begins to break, Aerys and Brynn are forced into an uneasy partnership that becomes far more intimate-and far more dangerous-than expected. Their choice to stay, together or apart, will determine whether the valley survives or shatters.