They swore to protect a possibility.
Long before the curse, IMP was a traveling troupe: musicians, actors, jesters, fighters, and swords-for-hire.
One arm of the troupe encountered a quiet family whose understanding of music, energy, frequency, vibration, and the human body changed what they believed was the soul of performance.
More Imps began to gather, and their ranks swelled.
Around the family, the Imps became stronger. Their music became truer. Their art became more visceral.
Loyalties deepened around a vision larger than any kingdom or race.