30 Days With A Billionaire

Due to a booking mistake, a French billionaire man who had been arranged to marry someone out of his interest was forced to spend 30 nights on a yacht with a Japanese billionaire woman who had recently lost a fiancé in a shooting incident.
Would a spark of true romance be conceivable regardless of the reality that they practically lived in two very different situations?
Given the complications that would arise if a forbidden romance began, would their love be worth the risk?