Dark souls

In a world where god exist and so do angels and demons. Lucifer, an angel cast out of heaven doomed to roam the earth alone, wants revenge. He creates dark souls, these souls where ones human and are now cursed demon-like creatures, wreaking havoc amongst the humans.
The archangels have created a weapon of their own, the Luminaria. A group of soldiers known as Lux powerful enough to fight these dark souls. Soldiers of Luminaria are stronger and faster than humans. They have telekinetic and telepathic powers. They use weapons of silver like the angel blades and 'spheres of light' to fight the dark souls.

Marco, a thousand year old Lux, is the leader of all of Luminaria and leads from the headquarters of Los Angeles. Most Lux age the same as humans do, but since they do need a leader the archangels have made Marco immortal. He has lived with generations of soldiers trough many battles.

Marco's daughter Avalon is a very skilled powerful warrior, she loves to train with her best friend and partner Iris.

Everything is normal at the Los Angeles headquarters until one day...
The dark souls seem to have disappeared...
Where have they gone? And what if all these strange things happening seem to be linked to a boy?
A strange boy, who seems to think he's human while he's actually a Lux ... and more than that...?

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This is my first story!
It's is a draft and English is not my first language.
Please let me know what you think of the story and if you have any feedback!
I'm here to learn and develop and share a story that I love writing.