"Protecting the earth and all sentient beings" is the innate mission of the angel guarding the stars. They have been guarding the earth in obscurity since ancient times. The social system of guarding the world where the guardian angel is located is managed by the agreement system represented by three races. Guide the battle from the side through the super-intelligent stone statue "the head of the leader" he holds. The guardian angel hangs upside down in the air with Tianzhu, which can't be observed by human naked eyes.
The "Tianta", the way for guardian angels to go to the earth from the guardian world, also has the function of protecting the earth. However, due to the destruction of Tianzhu, the five star protectors could not return to the star protection world. And attacked the earth, and the guardian angel's road to the earth was closed. Without the protection of the earth, is there any way to resist the invaders' attack?