The promise made when we were young is not false, it is just because of the deep love between brothers and sisters. Even though it is difficult for you and me to look back, we will never give up. The love that was buried when we were young has not lost its luster over the years, but has become even more brilliant. Watch the arrogant regent and the scheming little queen fall in love and kill each other. When the truth is revealed layer by layer, can they go back to the past...