Fantasy: Ask My Younger Sister to Help My Elder Brother Become Emperor

(Cultivation of Immortality + Slow Heat + Rhythm and Cool Writing + Dynasty Seeking Power) Overseas student Meng Jiu returned home after wandering abroad for many years. She actually traveled through time while having a reunion dinner with her elder brother and younger sister. But what I didn't expect was that the elder brother and the younger sister also traveled through time! The eldest brother traveled through time and became the prince, but he was attracted by another prince. Meng Jiu thought that he was the best after time traveling, but he didn't expect that the younger sister was actually the daughter of the Demon Lord. "Brother, you are the prince, why didn't you tell me earlier?" "I wish I had told you earlier, but little sister, you will do it as soon as we meet." Many years later, his eldest brother was deprived of his position as the crown prince, so he had no choice but to go to Meng Jiu's place to avoid the limelight. Unexpectedly, my little sister knew the news, and she immediately sent a message "Brother, I have already discussed it with the revolutionary army in the east. As long as you give the order, let alone the position of prince, we will directly become the emperor."