Princess's Personal Killer

*He was a mysterious killer who had been wanted for many years.when he tired of living in the underground world he decide returning to the city. By chance, he became the beauty's bodyguard.
Since that day，he feels like he can put away the gun in his hand and dispersing the smoke, that pair of murderous hands can also started to play the zither and draw.
But will things really go as smoothly as he thinks？