The moment the tsunami engulfed Haicheng, Chen Chuan died next to his lover Lin Wan. When he opened his eyes again, he returned to the twenty-four hours before the disaster. Everyone believes that this is just an ordinary high tide. Only he knows: after the seawater disappears, the submerged people will disappear collectively, a mysterious fog will appear between the earth and the moon, and the tsunami that truly destroys the world will fall from the sky. In order to save Lin Wan and find out the truth about his rebirth, Chen Chuan stepped into the tidal restricted area that should not exist.