Heroine Ye Mu from 21st century accidentally obtained an ancient book while performing a mission. What she didn't expect is that she got sucked into the book world and became the General's mistress daughter. Only by protecting Mo Lin Yuan, the little slave who she have been bullying, who is also the future emperor, then only she can return to the real world. Ye Mu therefore recruited Mo Lin Yuan as her personal bodyguard and constantly getting on his good side. Cultivating him in the development of morality, intelligence, physique from early age. Under Ye Mu's care and support, Mo Lin Yuan let go of the hatred he have towards her. And the story of the domineering lady and the loyal bodyguard slowly unfold. As the plot progresses, the two who grew up together gradually develop feelings for each other. However, there are many difficulties and hardships on the road to becoming a king. Can the two work together to overcome the crisis? Will Ye Mu be able to return to the real world smoothly?