Datang: I, Ming Shiyin, Was Summoned into the Harem by the Empress at the Beginning

My name is Ming Chongyan, also known as Ming Shiyin, and I am a time traveler. As soon as he traveled through time, he was summoned to the palace by Wu Zetian and became the man behind her. Now, Di Renjie wants to target me, Xue Rengui wants to kill me, Princess Taiping wants to have an affair with me, and Shangguan Wan'er wants to marry me. Even Wu Zetian's chiefs Xue Huaiyi, Shen Nanlao, Zhang Yizhi and Zhang Changzong wanted to kill me. What should I do? It's so difficult for me. I really don't want to be favored by Wu Zetian! Fortunately, there is a sign-in system! "Congratulations to the host for successfully signing in at Princess Taiping Bathtub!" "Reward the Secret of Immortality!" "Congratulations to the host for successfully signing in to Shangguan Wan'er's boudoir!" "Reward fifty years of skill!" "Congratulations to the host for successfully signing in to the Queen's Palace!" "Reward for intermediate level physiognomy to control wind and rain!" This novel and its characters are purely fictitious. Any similarity is purely coincidental and should not be imitated.