Gabriel Valemont, the charming spare to his twin King Nicholas, expects a smile to solve most problems until he meets Prince Alejandro of Solterra.
Alejandro was cast aside when Nicholas chose a footman and true love, and he has no intention of making another public scandal out of a Valemont.
Their every argument turns into flirtation, so the two rival princes turn the tension into a competition governed by a single rule: nobody falls in love.
Private moments and stolen kisses keep breaking that rule.
Neither man can tell where the game stops and something real begins.