Spoiler!
The emperor tells the MC that she has to kill Luciana, then says that she must become the empress, and he began to tell her that has to die in the process of becoming the empress. I don't know what is up with him but he's fuc**** crazy as I said. Anyway, the ML cannot accept the empress part and goes to his brother (the emperor) saying he would use his one wish ticket to get an imperial edict saying that the MC has to marry the ML, no questions raised. Taking this edict, he goes to the victory ball of the original FL to confront the MC.