Hilda and the Aces

It's 2023, the world is collapsing, every country are do their best to save the earth from separatism. Whole land, sea and air are covered with armament, civilians are suffered from roaming a region to another.

Hilda was having great adventure in Trolberg, but one day she saw some terrifying aircraft attacking each other, she saw the burning wreckage falling, and she didn't understand the catastrophe is getting close. So she managed to flee away, but she glimpsed a pilot crawling out of the wreckage, Hilda couldn't help but assist him.
After she saved the pilot, the pilot told his story of his flight, and explained this world is at the risk, the story touched Hilda, so she gave a necklace to the pilot, and he promised her that he will win the battle.
They went to their own different way......