Introduction: Chen Xin crossed over and joined his sister in Chang'an at the beginning. By chance, he met the empress Wu Zetian who missed the past, and mistakenly took the empress for her sister. Chen Xin: This is Wu... My skill book Empress Majesty, send Self-defense for my sister. Wu Zetian: ... Chen Xin: Sister, the demon seeds are about to recover, and the world is about to be in chaos. I will practice hard and protect you with my life. Wu Zetian: ... Chen Xin: Sister, I can not only write poetry, but I know a little about music. Wu Zetian:... Chen Xin: Elder sister, the current empress is stupid, causing chaos in the world. Now that I have accomplished my magic, let my elder sister be an emperor for fun. Wu Zetian: ?????? There is an extra empress for no reason Younger brother, she said she was very confused. This younger brother is very strange, he always comes up with some strange things and says some strange words, and every time it comes true. The introduction is weak, please move to the main text.