Hongwu's Direct Grandson: Determining the Future from Rebirth

"I... Am not dead?" Memories flooded his mind. One moment, he was a graduate student in the Department of History. In order to rescue a batch of Ming Dynasty documents, he slipped and fell from a building on a rainy night. The next moment, he became Zhu Xiongying, the eldest son of the founding prince of the Ming Dynasty, Zhu Biao, and the eldest grandson of Zhu Yuanzhang. The original owner had been weak since he was a child. He occasionally felt cold a few days ago, so someone secretly changed the decoction. However, the medicine and stone had no effect. He had to wait until the oil ran out, and then his otherworldly soul took over his body.