In the twenty-fifth year of Hongwu, Zhu Xiongying, the eldest imperial grandson, died of illness, only to awaken a mysterious System and hide away in a secluded paradise.
To return to the Great Ming, he must complete the System's missions. His first task is to save the Crown Prince Zhu Biao, who was supposed to die of illness.
A mysterious pill and a strange dream gradually lead Zhu Yuanzhang to realize that the inscrutable “old immortal” pulling the strings behind the scenes seems to have an inextricable connection to his eldest imperial grandson.
Save Zhu Biao, protect the imperial family, boost agriculture, strengthen the nation's fortunes...
In this life, Zhu Xiongying refuses to remain the short-lived eldest imperial grandson recorded in the history books.
He will change his fate with his own hands and lead the Great Ming toward a completely different future.
I seem to have read a similar book before, but I don't know the title.