Ten years later, Diana is now the princess of Doria, but hates the position. Her father, now king of Doria, tries to have her married-off to Prince Dunan of the kingdom of Guptia. Diana, however, runs away, fleeing the castle. Disguised as a man, she manages to get a slave called Fina out of a jam and they flee Doria. However, they are soon attacked by creatures as well as nomads. The nomads discover Diana is a girl, but don't listen to her princess story, instead, proceeding to train her and Fina into slaves. While Fina is being trained by the other slaves and Diana is being whipped, a stranger walks by asking where to spend a night, but the nomads want a rumble.

Unfortunately, the sadistic Prince Dunan from Gupta manages to kill one of the nomads in order to find the whereabouts of the two. Dunan takes Diana back to Doria, where he violates her. Meanwhile, Sho and the nomads start to take over Doria. During a reunion between Diana and Sho, Duna interrupts but is killed by Diana before he can discover Sho. Afterwards, they go to King Randis and inform him that Doria is being taken over. Randis takes his own life. Sho is made king of Doria but relinquishes the position to Teo. Instead, Sho prepares to travel through the land. When he is ready to begin his journey across the country, Diana comes with him saying she would rather be his slave and be by his side than be free and not be with him. So, they leave Doria and Sho leaves behind his mask.

Some time later, they come across a town which is ruled by the rich. These elitists are led by a girl named Patris. Under the request of her uncle, Yajil, Diana and Sho agree to try to improve her attitude. But, unbeknownst to the pair, Yajil is only using them to get Diana. A little encounter between Diana, Patris and the bodyguard Kyle helps Patris change her attitude. Yajil sends Patris on an errand to deliver a document, intending to have Sho killed and Patris enslaved. Diana interferes and, in the process, reveals to Patris that Kyle is in love with her. The group confronts Yajil about his deception, after which he escapes in a cowardly fashion.

Meanwhile, back in Doria, in their desperate search for Dunan, the Guptans try to assassinate Teo, the new king. The siblings, Hanna, who is in love with Gupta's prince Marlon, and Alberto nearly succeed in an assassination attempt but Teo's slave Ulsra manages to save him.

Meanwhile, Sho and Diana are in another town where Diana manages to beat Gilman, a chess master and take his slave Shiera. After a night of training, the chess master wants to buy back Shiera. However, Sho tells Gilman there's no need to pay and gladly gives Shiera back to him. Gilman also tells the couple of the assassination attempt. Sho and Diana quickly go back to Doria and start formulating a plan with the king's adviser Imil. Fina is in love with Imil, who later becomes her master after she successfully seduces him. Sho and Diana become the new king and queen of Doria and, while Teo recovers, they must now travel to Gupta and settle the score.

En route to Gupta, Marlon plants Hanna as a slave in order to gain information. However, Sho and Diana are aware of Hanna's true purpose and use Hanna's feelings for Marlon to their advantage. When Diana beats Hanna in a match, she tells Hanna to ask Marlon to make her his slave. Marlon is reluctant at first but agrees after some talking with Sho. Later, Sho and Diana admit to killing Dunan. However, even if revenge is taken, the conflict will not end. While the conversation takes place, Dorian troops invade Gupta, leaving them no choice but to make amends.

Later, Diana takes Hanna to Marlon where they proceed the slave training. Teo goes back to the nomadic life, living with Ulsra. Before leaving, he has one final conversation with Diana. She is now known throughout the world as the Slave Queen, inspiring other slaves to be by their master's sides rather than living in freedom.