Omniverse

After the Earth has been invaded by space invaders, the humanity is almost extinct. Now the Invaders are planning to for full destruction of  the planet. Among the survivors a Boy named, H, purely driven by sadness and rage of losing his loved ones, tries to obstruct the plan of the Invaders. But as the invaders are a second degree space civilization from the vast omniverse, Will he succed? What secrets will he Find about these intruders and about omniverse ?