Together We Save The World From Ending

Surfer and Horizon live in a time where men and women are ENEMIES.
Because of the war they've caused, earth has blown up. It's nothing more than ash now...
Women believe that they have the right to lead countries. They believe that they're more than housewives.
Men believe that they were created to be the stronger, better, and more powerful human beings.
Disagreements lead to the point that they've both become enemies- rivals that can't stand each other.
Females live on Feire (fair) the planet of hard work and strength.
Males live on Furey (fur-ray) the planet of power and richness to the bottom of the rainbow.
No females have met any males for ten whole years. No females or males have been born for ten years.
The population was slowly dying out.
But Surfer and Horizon were born twins. Surfer was a girl. Horizon was a boy. They weren't meant to be born. Their parents should have never met. But the four of them thought the same thing; the world shouldn't be like this.
Although in a world like this, they were separated. They never saw each other again.
Surfer was left in a jungle to survive on her own at the age of ten.
Horizon was left in the city to be adopted.
Python their younger sister was drifting somewhere in the middle of an ocean.
And who knows where their parents are. It's likely they're both dead.
But amongst all the chaos, Surfer is determined to find her brother Horizon. She'd do anything to be reunited with family. Even risk her life about a thousand times.