[Introduction] Modern people have forgotten their own soul and heart. People use computers and other electronic devices to communicate information, but forget to communicate with their own souls. Modern people forget how to love, and forget that love is the core and most precious thing in this universe. In order to find love, people compete with each other, but finally forget what the purpose of love is, even in front of their closest people, they will wear masks to perform. In the face of marriage, although we swore to each other to wait for this life, when we were tested, we found that the oath became so fragile that we dared not take responsibility and face the pain. Find the lost soul and heart again, don't wait until the end of life to understand the true meaning of love.
This is a drama system of the times, which reflects the changes and changes of Korean society by telling the different fates of two baby boys born in the same hospital in the same year for 40 years. Trust and betrayal, revenge and gratitude, four protagonists, four stories, intertwined emotional clues, and complex life trajectories. If you can choose again, what kind of life will the four protagonists choose?