My Backyard Opens Onto the Ancient World, and the First Emperor Comes Asking for Help

[Transmigrating through the heavens + saving historical figures + changing history + righting the wrongs that weigh on the heart] As Zhang Yu lies in his courtyard, a man in a black dragon robe steps out of a passage through time and space. His commanding Shaanxi accent brings back the First Emperor’s might from two thousand years ago. “What? That dog Xu Fu actually dared to deceive Us? Just wait. Once We get back, We’ll have Li Xin wipe that little island off the map!” “Mine, mine, all mine.” The man in the dragon robe stares at the map, muttering to himself. Zhang Yu feels he has done something momentous. In a certain parallel world, there may eventually be only one language left. It turns out that Zhang Yu unexpectedly obtained the Destiny System, linking his backyard to various parallel worlds. Ancient emperors and ministers can travel through the time-space passage to his courtyard to seek his advice, and he can also transmigrate to ancient times through the courtyard to complete one mission after another, or even take the place of certain special figures. As time passes, the parallel worlds undergo enormous changes. Huo Qubing fights his way into Europe! Yue Wumu brings the two emperors home! Zhu Youxiao avoids the disaster at Luoshui, and Chongzhen no longer has to hang himself from a crooked-neck tree! …