Become a powerful shadow master in the new world

"I want to become a powerful shadow person."
Sid, who was born in an ordinary real world with this dream, was reborn in a different world, but found that this world was too peaceful.
Just when I thought I would never be able to become a true shadow master in this lifetime, the world changed drastically.
Demons, vampires, angels, and gods appear one after another in this new world.
"Listen, this world is cheering for the birth of a powerful shadow warrior."
Shadow said so.