Owing to a letting old apartment, Sa and Gil met and immediately become rivals. The big house is full of traps and there is no escape for the two little rivals. They are caged and forced to become disciples of the famous heroine Black Rose. After several unsuccessful flees, the number of the blabbermouth driver Lo comes to their mind. When Lo receives their distress call and recalls the will of his father Robin which is to aid Black Rose by all means, he then goes to the Rose Garden.
Lo disguises as a police officer to inspect the strange house. But he imprudently falls into the deep hole which leads him to the underground jail where he meets Sa and Gil again. They call the police for help but, again, fail; they can only bow to their fate. The training starts and the two girls learn to grow black roses and read the history of Black Rose. After the lesson, they tail the dolled up Black Rose and sees that she is talking to herself tenderly but suddenly a quarrel starts ...... When she notices the three of them, she firmly assumes Lo as the betrayed Ki and beats him up.
Sa, Gil and Lo study the Rose Handbook and discover the heartbreaking past between Black Rose and Ki. Although they are touched, they still need to leave. But they are trapped by the device again within three steps. Finally they get the dizzy drug and put it into Black Rose's food in one outdoor practical action. However, Sa and Gil fall in a faint because of the drug attribute. In order to escape from the evildoers, Black Rose and Lo carry the two fainted girls through the hunt.
The wounded Black Rose recalls that she once has a unfaithful disciple called Tze who learns all her techniques, betrays her, becomes a robber and shames the name of Black Rose. So as to prevent similar incident appears again, she frees them. But it stimulates them to become two earnest Black Roses. They appear in front of Tze at the moment when she commits a serious crime and cultivate the roots for her revenge.
Though Black Rose knows that Ki would not show up in their 30-years dating, she insists to keep her promise and be a prompt dater. But when they arrive the Rose Garden, Tze is already there awaiting them. They start off an exciting fight. The new Black Roses jointly defeat Tze. Lo disguises as Ki and shows approval to Black Rose. It finally unties the knot of Black Rose and it preludes the kiss between Sa and Lo ......