I, Zhu Xiongying, Help Zhu Yuanzhang Set the Future of the Ming Dynasty Straight

In the fifteenth year of Hongwu, Zhu Xiongying transmigrates to the Ming Dynasty and becomes Zhu Yuanzhang's eldest legitimate grandson. After awakening the Great Ming National Fortune System, he opens a gate through time and takes Zhu Yuanzhang to witness famous moments from different eras of the dynasty. Their first stop is the Battle of Tumu. Zhu Yuanzhang witnesses the disgrace of Zhu Qizhen, the “Emperor Who Opened the Gates,” and, in a fit of rage, slashes the Oirat army's banner in two. After that, grandfather and grandson travel through the Ming Dynasty's 276 years of history: the Jingnan Campaign, the Coup at the Gate, the Jiajing Emperor's quest for immortality, the Wanli Emperor's neglect of state affairs, and Chongzhen's suicide by hanging... Armed with the Great Ming Ancestral Instructions, Zhu Yuanzhang and wielding a saber of destiny, Zhu Xiongying beat their unworthy descendants at every turn, erased the regrets of history, rebuilt a mighty and iron-blooded Ming Dynasty, and forged an empire on which the sun would never set.