Rating

Read as rēto, a rating is the label the CCG attaches to a ghoul to convey its estimated power and how much of a menace it represents. The scale holds six tiers, topping out at SSS for the strongest and bottoming out at C for the least capable. A tilde beside a grade signals that the figure is a floor rather than a fixed value, meaning the ghoul is judged to be at minimum that dangerous and could be revised upward once more is learned about it.

Assessors weigh several things: raw strength, how active the subject is, its sway over other ghouls, and how aggressively it goes after investigators. Each tier maps roughly to the caliber of officer needed to match it. An SS threat calls for several Special Class Investigators, an S+ equals a typical Special Class, and an A ghoul stands on par with a First Class officer and may sprout a second tail. B-rated ghouls line up with Rank 1 through Rank 3 staff and pose only a modest danger, while C-rated ones can barely challenge an investigator and prey on defenseless people instead. The tally also folds in the real harm a ghoul has done, counting its feeding and killing incidents. The framework replaced an older one built on degrees, so a designation like special third degree became the SSS grade used today.

Only a handful of ghouls have ever reached the SSS ceiling, among them Eto Yoshimura as the One-Eyed Owl, Yoshimura as the Non-Killing Owl, and Roma Hoito. The SS band gathers many of the series' heavyweights, including Big Madam, Hinami Fueguchi, Ayato Kirishima, Uta, and Ken Kaneki in his Haise Sasaki period. Familiar names such as Rize Kamishiro, Shuu Tsukiyama, and Kuki Urie sit at S, while lesser threats like Akashi Kobayashi at B+ and Scarecrow at C anchor the bottom of the ladder.