I say you have her parents be kidnapped by a secret society of Moogle ninjas who's plan to rule the world by converting Miqo'te into Cateria is finally at hand, after the fall of Dalamud allowed for their mystical space puppet Alakazoo to regain his former powers which he lost when he went through the trans-dimensional rift created when the character Lightning somehow found her way into FFXIV (which hasn't happened yet, but the real hook of your character's back story is that it happened in the future!*)
*The trans-dimensional rift allowed this to happen. Also, you have a mystical space puppet named Alakazoo in your backstory. No one's going to question this at this point.
*The trans-dimensional rift allowed this to happen. Also, you have a mystical space puppet named Alakazoo in your backstory. No one's going to question this at this point.