Qin Shi Huang, Emperor Wu of Han, and Tang Kid’s Modern Study Abroad Diaries

When King Zheng of Qin was not yet Qin Shi Huang, Liu Che had not yet won a great victory over the Xiongnu, and Li Shimin was still a little boy in the Sui dynasty. The three of them were "chosen by Heaven" and sent far into the future by the power of the Heirloom Seal of the Realm. Their lives as exchange students began in a poor village. Ying Zheng: Such a wide road through a tiny mountain village! What a prosperous village! Liu Che: They all go to school! Even the girls go to school! What a prosperous village! Li Shimin: What, I transmigrated to the future with the First Emperor of Qin and Emperor Wu of Han? Father, Mother, I'm amazing! Later... Ying Zheng: What, high-yield rice? It's mine for the Qin dynasty. What, papermaking? That's mine for the Qin dynasty too. Hmm? A politics textbook? What kind of art of ruling is this? Liu Che: Don't you dare touch my great-grandfather, or else... What, the Four Generations of Three Excellencies have a monopoly on interpreting the classics? I'll put an end to that at the root! Li Shimin: (After reading the history books) I accomplished so much, but Father still won't change the crown prince. He must think I don't know how to govern. I'll learn all these things, then study statecraft under the two emperors. After Father becomes emperor, surely he'll be willing to make me crown prince. Ying Zheng and Liu Che, looking puzzled: How can someone so naive be considered our equal? Later still, they realized that the most important things to bring back weren't ready-made machines, but knowledge. Blurb two: They set their sights on the inventions of the future and wanted to bring back good seeds, papermaking, and metallurgy... They pored over the history of the future, hoping to make up for their regrets and change the tragedies along that timeline... Only in the end did they understand that dynasties could never last forever. Everything they brought back would be a double-edged sword, helping them achieve great things while also stirring the tides of history. Ying Zheng: The Qin dynasty fell after two generations. What do I have left to fear? Liu Che: If this is the way things are destined to go, why can't I be the one to start? From now on, call me the greatest emperor of all time. Li Shimin: I was born to end chaos and restore order to the world. Heaven's mandate is mine, and I won't shirk it. The tide of history cannot be stopped, and dynasties are destined to fall. Human lives are limited too. Only immortal achievements can remain in this world and be passed down for generations. Ancient people travel to the modern world and back. There are three protagonists, and after returning to their own eras, each of their dynasties will be covered. But Li Shimin will be the main focus, since his age makes his POV more convenient to write. Qin and Han are close in time, so when one side's parallel developments are covered, the other may not get similar scenes. In terms of page count, the dynasties will appear in roughly this order: Qin, Tang, Han. A parallel timeline. Please don't connect it to reality. The date of their arrival in the modern age is intentionally left vague. Major events such as spaceflight and lunar exploration don't happen at the same time as in reality. Some figures in the story are also intentionally different from reality, including gold prices and population. Please don't use real-world figures as a reference. For other things to keep in mind, see the author's note in the first chapter. Coming soon: "I Swapped Souls with a Master from Another World" Wen Lesheng gets into trouble. Suspected of murder and stealing secret manuals, he's escorted to the victim's sect for questioning. On the way, he swaps souls with a master from another world! Chen Yan was stolen by his parents' enemy at birth, who taught him nothing and raised him to be a fool as revenge against his parents. But the enemy never expected that Chen Yan had extraordinary natural talent. Instead, he devoted himself to the laws of Heaven and Earth and became the greatest person beneath the Heavenly Dao. But he has no hatred and no love, and everyone says he has no heart. One day, he swaps souls with an ordinary person from another world. "Group Transmigration to Build Infrastructure in the Spring and Autumn Period": The initial idea is to send a group to the era of Mozi. Theme: Work hard at learning, and you will be rewarded.