Eminence in Shadow, Vol. 1 (manga)

There's only one thing in this world Cid wants to be. And it'snot some bland protagonist or the final boss-he has his eyes set on becominga mastermind working in the shadows. Now that he's been reborn inanother world, Cid has been hard at work, building the perfect stage to actout his long-desired role. The issue is that these imaginary adversaries andplot devises exist in this new world...and he's the only one left inthe dark!