The Last Practitioners Of Magic: Reign Of The Technomancers

It is the year 3024, magic became a reality when ancient crystals buried deep within the earth were discovered.
1000 years later, magic had been outlawed, the ancient magical crystals were sealed away, leaving technology to reign.
Technology, now so advanced, is able to replicate magic and give it to anyone, the process dubbed TM-Sync.

Technology is better than magic because, with technology, there is equality. 
Magic will no longer be wielded by select individuals, no, anyone can wield magic, as long as you had deep enough pockets for it.
And those who have deep enough pockets get to live in a parts of the world segregated from those with shallow pockets, so the deep pockets can be equal with other deep pockets and vice versa for the shallow pockets, remember, equality.

And with this new age of advanced technology, comes incredible peace.
No more wars, no more crimes, no more protesting and riots, unless you are among the disgusting rebels who seek to bring the world back to the age of chaos and disarray that magic had wrought, but besides these infidels, there is peace.
Albeit at the cost of privacy and freedom, with the highest form of Technology and law enforcement being Technomancers, soldiers outfitted with the most powerful TM-Syncs that could annihilate hundreds of soldiers in seconds, as long as you obeyed the rules, paid your taxes, and never looked the Technomancers in the eyes, then there was peace.

A truly wonderful world the human race has found itself in.

A world of equality and peace.
But to disrupt this wonderful world is the tyrant Mercury, who had been given a system, to increase his magical potential as a Practitioner of magic, which in turn he will use to bring the world back to chaos, disarray, and inequality.

But despite just being a 12-year-old child, despite losing his mother and father, despite having everything he knew turned upside down, despite facing a nation of Technomancers, this tyrant still fights, he fights for his beliefs, he fights to avenge his family, he fights to bring back the world to the way it was, he fights to have magic run rampant, and, he fights, so his sister, the only family he has left, can grow up in a world, of freedom, life, and abundance.