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Just like how everyone adored heroes in their childhood, a certain young  man adored those powers hidden in shadows. After hiding his strength  and living the mediocre life of a mob character by day while undergoing  frenzied training by night, he finally reincarnates into a different  world and gains ultimate power. The young man who is only playing at  being a power in the shadows, his misunderstanding subordinates, and a  giant organization in the shadows that gets trampled…. This is the story  of a young boy who had adored powers in shadows possibly eventually  reigning over the world of shadows in another world.