Crawling out of hell with my own efforts

While having one of the best childhoods one could wish for, it was tragically cut short as many people wanted him specifically for one reason, his blood.

Now having taken the identity of someone belonging to the organization which cut his happy life short, he has to start plotting about his next steps.

Ruin the organization from inside? Plot with someone else? Walk away given the opportunity?

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=First chapter info dump about the background of the world.
=English not main language.
=Story picture found somewhere on the internet, please do whisper for it to be taken down.