If the world is in ruins, it's up to us to save it.
If the way to awaken the future is hope, leave it to children.
I believe they will be our hope.
——
In the era of energy crisis, mankind has given hope to Yuanyuan.
Yuan Yuan travels through the universe carrying the Flower of Hope, trying to find alien creatures and ask for their help.
During the space shuttle, Yuanyuan met No. 156, Who had lost his memory. They experienced life and death together, and the two creatures became friends.
Under the intertwining of reason and emotion, the flower of hope returns to its original position, and the galaxy ushered in the long-lost peace.
Mission: Facing difficulties head-on and never retreating