On an ordinary night, Lili discovered a secret in a small door that suddenly appeared at home - the natural world is dissatisfied with mankind's destruction of the environment, and decided to launch a counterattack, and mankind will face annihilation!
The only way to stop this is to enter this door with your friends, collect all the diamonds, and obtain the forgiveness of the heart of nature.
The Diamond of the Forest, the Diamond of the Sea, the Diamond of the Sky, the Diamond of Life, the Diamond of the Earth...
Outside the door are ordinary days, but inside are dangerous and unknown adventures. How will Lili and her friends choose? Where will mankind go from here?
Purpose: To protect the environment is to protect human beings themselves.
