Zhu Biao Is Dying, So How About Turning Your Son Into a Jiangchen?

Good news: I transmigrated into the body of Zhu Xiongying, the eldest grandson of the Ming emperor, and awakened a 4D imperial mausoleum space with a sign-in portal. I can sign in at the mausoleums of emperors, empresses, and famous generals from every dynasty. Bad news: The imperial grandson Zhu Xiongying is already dead. I have to lie flat in the imperial mausoleum for ten years, and I can only activate the mausoleum sign-in space on the day my father, Zhu Biao, dies. Good news: My father, Zhu Biao, has finally died. I've activated the imperial mausoleum space, where countless sign-in treasures are waiting for me to claim them. Bad news: The System tells me I have to turn my father, Zhu Biao, into a zombie before I can leave. That's because every dynasty has an organization called the Office of Historical Records Oversight. Its members, known as inspectors, are responsible for eliminating transmigrators and correcting history, and their methods are beyond mortal comprehension. Good news: My grandfather Zhu Yuanzhang, my grandmother Empress Ma, my father Zhu Biao, and my mother Lady Chang have all agreed to let me turn my father Zhu Biao into a zombie. One good thing after another: My first imperial mausoleum portal mission has been activated: the Yongle Emperor, Zhu Di. The best news of all: I can take my grandfather Zhu Yuanzhang and Zhu Gaochi from the Hongwu era to the Yongle era to visit the God of War, Zhu Di. An unexpected piece of good news: I met Princess Yueyang of Great Qin. She's one of the Office's Twelve Inspectors, and she begged me to take her to sign in at the First Emperor's mausoleum. She also promised to help me deal with all the inspectors in the Ming era. And so, by day in the Ming, I'm Crown Prince Zhu Biao, building an empire where the sun never sets in just ten short years. By night, I'm the imperial grandson Zhu Xiongying, taking Old Zhu to Great Qin, Great Han, and Great Tang to meet Zheng Ge, Er Ge, Che Ge...