Hasteria and Haura, The Sky Guardians

It is said that at the creation of the cosmos, a chosen planet sheltered a species born of the gods: Man.
To be punished for this resemblance, this species will constantly be tormented and weak constitution.
The gods unleashed hordes of harpies to test their offspring.
Men made new weapons to defend themselves, and one day, a harpy, named Hasteria, was gravely wounded.
Her sisters in arms abandoned her on the battlefield. Then, a brave soldier seeing her dying, gave her water.
Unfortunately, he died killed by of his own army…
Some time later, the harpy's death took on the appearance of the god Hades.
Then, Haura Nyx daughter, mother of the night and the stars, emerged from the void chasing Hades away.
Haura seized Hasteria, and nursed her. Unfortunately, Hasteria lost her sight, and Haura changed the perception
of the one she had saved.
Then Haura, queen of the eagles, adopted Hasteria, and transformed her into a "soul mate."
From then on, they were bound by their shared perception.
Haura transmitted to her two of her four galactic forces: the strong, the weak, the electromagnetic, and the
gravitational.
So now Hasteria possessed the weak force (great power limited to her body) and the gravitational force.
Thus, regardless of time, space, or danger, their souls were bound in their flesh and their powers.
What Hasteria did, Haura felt. What Haura scrutinized, Hasteria deduced.
Hasteria lived with her sisters' family, the Star Eagles, fighting against the harpies and her former masters.
She swore to defend the Star Eagles and the earth in honor of the man who rescued her and eased her suffering.
The gods soon heard the rumors of Hasteria's adoption and unleashed calamities to ravage the earth.
It was then that the vengeful anger of the two sister entities transformed into a celestial creature.
The phoenix bird appeared before the universe and unleashed its violence.
And then Olympus trembled...

The concept was made by Xingchen0329 星晨
https://www.artstation.com/artwork/6bDR90

Special Thanks to Antoine Dupuis and Antek Kopacz for their relevant feedbacks:

https://www.artstation.com/antoinedupuis
https://www.artstation.com/antek

Pixabay, for the soundtracks
https://pixabay.com/