That's right. In the end, only one pair can have their wish granted.

[ he looks down to her, an odd shadow crossing his gaze. after a moment, he sighs. ]

...I won't beat around the bush, Ai. The people you're fighting will be Mages without fear or remorse. They'll be willing to go to any length to reach their wish. If they find you, they will strike to kill. [ there - that odd look in his eyes, again. ] Knowing that, can you still fight for your own happiness?