"I'm getting married." After confirming their love by hurting each other, Gong Juyun one day declares to Han Ijae that she will marry another man. An idol and a sponsor, a person who has been hurt and someone who doesn't want to hurt others, a person who left and someone who found late, an older sister and a younger sister. Their complicated relationship shakes in front of the change that Juyun throws. Can Han Ijae and Gong Juyun untangle the twisted time and reach the 'mutually loving relationship' that they have never achieved?