[Making money by picking up leaks and detecting treasures] + [Moving between the two worlds of the Republic of China/Modern Times] + [Foreign powers that fucked them] + [Multiple female protagonists of the Republic of China/Modern Times].
It's a slow-paced, non-brainy and enjoyable book. It gets better as you go to the back. Parents, please read more and add to your bookshelf.
Lin Xiao unexpectedly discovered that he could travel back and forth between modern times and the Republic of China. He bound the [National Treasure Return System] and began to recover national treasures, including Wang Xizhi's copybooks, Song Huizong's famous paintings, Dunhuang murals, and the animal heads of the Old Summer Palace... This time he wants to take back everything the country has lost!