The Three Elements: My Planetary System is divided into three parts: The Journey, The Return, and The Construction. It mainly tells how, as the Sun's life gradually runs out, humanity builds beyond Earth, following the Sun's orbital path to create a second alien space and a third space meteor. Using their wisdom and lives, their family bonds and sense of responsibility, humans set out to explore and build a third world.
The Journey, the first part of The Three Elements, takes place in 2150. Humanity has built a complete scientific research system in outer space. While people living on Earth share in these scientific advances, they are also plagued by the Black Ribbon disaster. Although human lifespans are gradually increasing, more and more organs are being replaced with artificial ones. These cold, artificial organs are controlled by chips and lack the ability to make independent scientific assessments. For the journey into the third space, humanity needs people who can think and judge independently, and who are steadfast and loyal, to carry out exploration in outer space. Fang Bai's team, responsible for collecting data on the original universe, is fortunate enough to be selected for the second wave. Thirty years after the first fleet lost contact, Fang Bai's team sets out on its journey into the unknown. The bonds of family, love, and friendship among the team, along with their exploration of the scientific universe, their spirit of sacrifice, and their sense of duty, will move and inspire us in our own lives.