How to unlock Lid's second limit burst in Final Fantasy Resonance

Getting Lid's second limit burst in Final Fantasy Resonance works a bit differently than the process of acquiring other characters' bursts. With most of the party, you just level them up, and they unlock once you hit the right milestone. You can guess when that is just from a quick scan of their skill list, as a new skill usually accompanies their new limit burst at the same level. But Lid's skill list is shorter, and since the game doesn't tell you how to unlock her second burst, you might wonder whether you've missed something.