After seven days of unexpected encounter, two strangers, Xu Fan and Yu Meng, received the certificate of life - a marriage certificate. However, after receiving the certificate, the two people did not get married in the true sense, but simply lived together. Many crazy, funny, and happy stories happened during the days of living together. After learning about Yu Meng's life experience, Xu Fan started his own efforts. For his love, Xu Fan grew from an ordinary clerk to a business leader. He experienced the suppression of large groups, the occupation by Japanese companies, the betrayal of friends, and finally became a legend in the business world. But can love really be embraced after success? Can happiness really be achieved? Does falling love really exist? What will be the final outcome? I hope we can have it together and realize it together.