Lucifer system: Becoming the Devil in an Apocalypse LSBDA

An apocalypse that happened in 2024 threatened all of humanity, unifying the Earth to be governed by the same laws and oppressive government. Alien captives from the apocalypse were exploited by humans for their knowledge and power to advance buildings as well as technology.
It is the year 2044 and humans don't know is that there is a second apocalypse that I have been dreaming about. Afraid of being classed as an alien for having these dreams, I choose silence.
The second apocalypse leaves me prisoner in a land where humans can practice magic. However, learning magic is the least of my concerns for if anyone learns what I am, I will die.
I have no idea how it happened or what to do about it. All I know is that I can't trust anyone.
[Congratulations, you have unlocked the Lucifer System. You will become the devil. Would you like to accept?]
[Yes and live as the devil/ No and die] [You have 48 hours to choose or else you will die]
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Welcome to the best story ever!! Enjoy it.
Cover credit: i.pinimg.com on Pinterest. The cover is not mine.