Seo Ji Hyun cared for her husband Min Soo, who fell into a vegetative state after a car accident just 20 days into their marriage, for six and a half years. Kim Sung Hyuk, the second son of a conglomerate, proposes to her. After they marry, Min Soo miraculously regains consciousness. From this point, a triangular love conflict unfolds, along with the unraveling of the mystery behind Min Soo's accident.