The story will revolve around Yoo So-joon (Lee Je Hoon), a CEO of a real estate company, who has the ability to travel through time via a subway; and his wife, Song Ma-rin (Shin Min Ah), who 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.

(Source: DramaWiki)

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