In an ancient library, six distinct staff members encounter mysterious events that lead them on a magical adventure filled with surprising twists and nonstop comedy.

Mo Yan is a quick-thinking, sharp-witted young aspiring thief, who wants to become the top robber in the field. But when a senior male associate is caught and imprisoned at a powerful court in Kaifeng, where Prince Ning Jin reigns. She decides to infiltrate the court to rescue the associate. But the Kaifeng court’s guardians are a formidable force, and their most outstanding star is the man known as the “Royal Cat” – Zhan Zhao. With impeccable chivalry and outstanding fighting skills, his reputation is second to none.

Small town girl Fang Li and the stone-faced straight-A student Luo Yan relive their forgotten days from high school after reuniting in college, thus starting their journey of love that's filled with endless bickering. Fang Li and Luo Yan became classmates during their freshmen year of high school. For Fang Li, Luo Yan's existence was a nightmare. Three years later, they meet again as university students. Luo Yan no longer remembers Fang Li from that time, but the battle between the sunny girl and the proud devil has just begun. The two "enemies' experience the best times of youth together, recovering the beauty that was once lost and finding the path to their own dreams.