He Xuan, an ordinary urban youth, lives an ordinary life. His biggest hobby is to share the flowers and plants he grows online. One day, he bought back a seemingly ordinary pot of cactus from the flower and bird market, and unexpectedly opened the "future space" - a wonderful ability connected to the doomsday earth. The soil in the space can accelerate the growth of plants, but every time it is used, the flow of time in the space will accelerate. Gradually, He Xuan discovered that there is a shocking secret buried in this space: it comes from the last hope seeds of mankind in the end of the world, and can allow plants to survive in extreme environments. However, while gaining this power, He Xuan was also involved in the mysterious alliance. This organization has been searching for space debris in an attempt to restart the doomsday plan. He Xuan was forced to grow up from a little blogger who posted photos of plants to a guardian of the secrets of the real world and space. He uses the power of plants to heal his neighbors and help his friends, but he doesn't know that every step he takes is touching the nerves of the alliance. When the plants in the space began to blend with the real world, He Xuan discovered that every pot of flowers he raised might become the salvation of the future world, or it might become the key to the destruction of reality.
