I Have Eerie Eyes, and I’ll Slaughter the Ghost Clan

In this world, ghosts disguise themselves as humans and mingle among the crowds, devouring people and taking their place. Worse, you can never know if the person beside you is a ghost. Zhao Chen awakens the Ghostly Eye, which lets him see how eerie everyone is. But he soon discovers that someone with an eeriness rating of 80% isn't necessarily a ghost, and someone with a rating of 0% isn't necessarily human. The worst part is, he looks at himself: 99%.