In the Apocalypse, Why Has the Country Made Me a Secondhand Dealer?

I transmigrated into the world of Plants vs. Zombies for eight years. After eight years of fighting, Bu Yue finally trained herself into a powerhouse and persuaded Penny, the time-machine RV, to switch sides. Together, they returned to the homeland she had dreamed of. But who could have known that the homeland had been transformed beyond recognition by the spiritual qi revival eight years ago? Natural disasters and human calamities were everywhere, and cries of anguish filled the land. To keep the world from being destroyed, to protect love and peace! At this moment of life and death, I, Bu Yue, will step forward and swear to become the savior! ??? Wait, what do you mean I’m not the savior? The country wants me to drive Penny through different eras and work as a middleman??? Probably no romance. I mainly want to tell the story of how someone raised by their country will ultimately become a pillar of the nation.