Synopsis：The heroine accidentally traveled through the book (time travel) into a novel world full of grudges of wealthy families, and became a seemingly ordinary nanny (Nanny) of a wealthy family. The person she serves is an extremely prominent and powerful billionaire family. Amid the turbulent infighting and various calculations of the wealthy family, the heroine unexpectedly attracted her cold and arrogant Billionaire Boss by virtue of her "inconsistent" magnanimity and pure soul. As the two develop feelings for each other in their daily battles of wits and courage, the heroine's hidden true identity and past secrets gradually come to light, and the two must face the ultimate identity reveal and wealthy test together.