Marry My Husband: Season 1

Life takes an unexpected turn for Kang Ji-won, who witnesses her husband and her best friend having an affair. Ji-won is killed, but miraculously travels back ten years in time, given the chance to re-do her life. In her quest for changing fate, she partners with Ji-hyuk and seeks a way to pass on her unfortunate fate to the two betrayers - her husband and her best friend.