“Tomorrow With You”  tells the romance story between a time traveler and his wife. Yoo So Joon (Lee Je Hoon) is a CEO of a real estate company. He has the ability to travel through time via a subway. Song Ma Rin (Shin Min Ah) is his wife and she works as a photographer. So Joon foresees his future-self living miserably so he decides to marry Ma Rin in order to avoid that fate. As time passes, he learns to love her selflessly.