Takahiro Tanaka

Inside a majestic museum, a young warrior gets attacked by shadow beasts born from people's fear and uncertainty over what they don't know. The warrior fights against them using the energy charger on his waist, but soon the energy runs out. In this desperate situation, he finds a new, unexpected source of power.

Over many years, the animals evolved in isolated cities, with artificial genetic crossbreeding, they acquire language, bipedality, and build a life and civilization for themselves free from want. No one thinks of the world below any longer. One day, a single plant seed wanders into one of the sky cities, and the children Kui, Hiruma, and Root discover it. Unable to resist the temptation to look into the world outside, they decide to undertake an adventure to the outside world, unknowing that once they set foot on the ground, they will never be able to return.

The universe of the Halo video game series is expanded in seven short animated films from Japan's greatest anime directors and studios.