The male protagonist Gu Cheng, 42 years old, is the chairman of a self-made group. He has wealth but is indifferent to emotions. He has seen too many people who revolve around money and interests and completely "cut off the power" on love.
The heroine Lin Xia, 32 years old, has a high school education and is a single mother struggling to survive at the bottom of society with her 6-year-old son. She has worked as an assembly line worker, a waiter, a small restaurant owner, and a cashier. She has been cheated out of money and cheated out of love, but she is still stubborn and sober.
Two people who should have nothing to do with each other live under the same roof because of a nanny job. She doesn't understand the rules of a wealthy family, she only knows how to work and get paid; he is used to being arrogant and submissive, but he is attracted by her "difference".
