It's for love, I'm willing to share my soul, and go back to those years that were not innocent. It's for hate, I'm willing to tie up the obsession with happiness, leaving only yesterday that will never stay. I—21-year-old Milan Davis is just an ordinary girl living in Washington, the United States, but due to a hope experiment, she accidentally landed in a certain city in southern China with another identity—a high school girl Jingli. From then on, I Adventures, entanglements with Martians, encounters with former lovers, bonds with modified robots, and the war against two planets... Determined friendship, torn love, silent family affection, protection, confrontation, death and revenge, what is the truth behind the dark clouds, and what is the definition of survival? If time really stops and goes back to those years, maybe I will not meet him...