At the age of thirty, Lin Wan's "good news" and "bad news" came together. Good news: She finally got rid of the cheating man, she is single again, and she likes to be "free"1. The bad news: The freebies of this freedom are a three-year-old cub waiting to be fed1, a mortgage to pay1, and a highly competitive job that could be optimized at any time1. From then on, Lin Wan's world was divided into two halves. During the day, she is a resolute project team leader. She wears seven-centimeter high heels and charges in conference rooms and cubicles of office buildings. She drinks coffee to keep her alive and instant noodles to satisfy her hunger. She battles wits and courage with clients for a contract. At night, she transformed into an omnipotent super mother, making milk, changing diapers, singing lullabies, and watching her son until dawn without blinking when he had a fever. She thought she could carry it all, until one day when she worked overtime until late at night, she suffered a stomach attack. The pain made her huddled at her workstation, and she didn't even have the strength to call an ambulance. The phone screen lit up, and it was Ji Feng, the taciturn technical guru from the group next door. Monsoon: There is warm water and stomach medicine on the table, and hot cocoa has been made for you. The temperature is 32 degrees, which is just right to drink now. Lin Wan looked up and saw him standing not far away, his eyes calm, like a silently guarding tree. Later she discovered that those "just right" coincidences were not coincidences. It was when she was in a meeting that he "conveniently" helped answer the phone call after school in the kindergarten. When her computer had a blue screen, he "just happened to be passing by" and solved all the bugs perfectly. It was when she and her son were downstairs in the rain and couldn't get a car, he "happened to work overtime" and drove them home.