The star of this drama is Kang Hoon, he's cute and adorable. 3 guys with hidden identity renting rooms for their national exam in town hosted by Yoon Dan-Oh, one of the guy was the run-away crown prince's son whose gone missing many years before with the help of watchman. The Crown Prince's son Lee Seol was survived from the coup, his parent killed by his brother taking away his seat as the heir of kingdom. Lee Seol was helped by a watchman, a mysterious man who'd protect the king, since young he went hiding and lived surround people under different identity.

3 handsome men; Kang San, Kim Shi Yeol, Jeong Yu Ha were room mates, although they're not getting on well, they're pretty civil to each other. Kang San was good with his martial art and very tart, Shi Yeol is an easy going, gambler, playboy, Yu Ha was a serious scholar and like Dan-Oh but who actually were they? When the chief of Palace guard were looking for the 'golden dust (Lee Seol) his intention was to find the watchman because he believed if he find the runaway prince he certainly would find the watchman who killed his beloved son during the coup. He suspected Dan-Oh would know who it was among the 3 guys and struck a deal with house as collateral.

I guessed it wrong, I thought it wrong, which one was the real prince amongst 3 men. Eventually the King was determined not by the real blood but by conveniences. Good ending..all had their happy ending.