Dream Ghost.

Upon waking into a harrowing new reality, Lin Ye discovers he possesses a forbidden power: the ability to devour dreams. While others cower in terror, he turns the realm of nightmares into his personal hunting ground, consuming terrifying entities as mere nourishment. To the Nightmare Hunter Association, he is the last flicker of hope. To the mysterious architects of fear, he is a dangerous thorn in their side. But as Lin Ye digs deeper, he finds that the true monsters are waking from millennia-old slumbers in the deepest abysses of the dream world, and they have just become his next targets. It is not that he fears the nightmares—it is the nightmares that fear him. His name is Lin Ye, and his codename in the dark is Sleeper.