Kingdom Hearts X; The Forgotten's Keeper

In a time when unions meant everything, the race to stop the keyblade war brings together unlikely allies. To save the world the unspoken rules must be broken, and friendship must cross union lines. But can the traitor be stopped before it's too late? Or will the prophecy come true?
Ephemer and Skuld know something's going on. But what can they do? With no other options they start their search for the truth. But will the answers they find save them? Or send them to their doom?
Kamiko and Takiko have been together since birth. Neither can remember what it's like to be one without the other. Nothing can separate them, not even being in different unions. But they carry a secret that could change the fate of everyone, and with threats from the unknown traitor, things might change a lot faster than they thought.
Jax never really cared one way or another. He was always a loner even in a group. But he holds the most important piece of the puzzle. With the keyblade war looming ever closer, he has to find the Master of Masters and put an end to this nonsense. But one person stands in his way. The traitor.
Annora swore loyalty to her union. She swore she would never betray them. With Chirithy at her side, it seemed like everything would work out in the end. But as the threat of the keyblade war comes closer and closer and the foretellers wage war against themselves, she's no longer certain. Can she find the traitor and end this war for good?