This Is a Magical Canopy

I know the cover isn't very pretty, it's not as good as other people's. This one was made by me. Don't worry about details Sky screen, male protagonist tool man, system, slight interaction between interfaces There are too many regrets in history, If Qin Shihuang knew that the second generation would die If Emperor Wu of the Han Dynasty knew about the disaster of witchcraft If Emperor Taizong of the Tang Dynasty knew about the Anshi Rebellion Here, I will try my best to make up for it Watch the future together [Key points of this book Maybe not the best, but it must be relatively complete From ancient times to modern times From uprising to resistance against Japan From World War I to World War II It's all here Also, this book leaves no regrets and gives those characters as happy an ending as possible] [The entire text of the software has been tested for typos, but due to the gap between computers and people, there may still be errors, please understand]