Amber Liu A delivery nerdy girl who is secretly in love with her Bestfriend Krystal Jung who is a daughter of a respected mafia group in Korea......

Their life is just normal until one day a man name Hino introduce himself as a positioned Bodyguard for krystal...

It is said that every daughter of Mafia groups are being kidnapped and killed in search of a Crystal that has been said to be implanted in one of them......Krystal is in danger because of that....

Along with that Amber is assigned to guard and keep Irene Bae the only witness of the gangs illegal doings safe at all cost....

How will this affect The nerdy girl's love to the princess