The Black Reaper (Sasaki Haise)

In Tokyo, mysterious murders are being committed by Ghouls, unknown beings that feed on human flesh. In this world, there exists a special anti-Ghoul force (CCG) tasked with eradicating Ghouls from Tokyo and their organizations. They are humans who wear black suits with white trench coats and carry briefcases containing their quinques (weapons extracted directly from a Ghoul's Kagune).
Ghouls are human-like creatures that can only eat human flesh. They tend to change their eye color to black with red and have limbs called kagunes for killing. They can be fast, strong, flexible, and skillful.
The CCG Investigators are humans who have trained for a long time to counter Ghouls; they are strong, skilled, and intelligent, although of course their strength is less than that of a Ghoul. To defend themselves, they use Ghoul steel quinques.

Organization Against Ghouls, better known as CCG.
It is in charge of protecting citizens and eradicating Ghouls; normally the organization is merciless and inflexible.
It has Ghoul investigators who are in charge of solving cases and dismantling organizations, and in turn, killing as many Ghouls as possible.
Some powerful Ghouls do not die and are taken to Cochlea, which is a Ghoul prison where they can be interrogated.
They use quinques to defend themselves.

There are several ranges such as these.
Subordinates: They follow those of higher rank.
Third-class researcher: They are the lowest ranks and are usually colleagues of higher ranks.
Second-class researcher: They are higher than third-class ranks, but they are still only peers.
First-class investigator: They are assigned small squads of low ranks, they have more weight in the CCG.
Associate Researcher: These are researchers who lead an entire squad or their partner in a given case; they are important to the CCG and are quite strong.
Special Investigator: They can lead entire missions, command multiple squads, and make important decisions; they are the strongest and most insightful.

Ghouls are creatures with a human appearance that are only differentiated by 4 things.

1. They can only eat human flesh and drink black coffee.
2. When they are hungry or about to use their Kagune, their eyes change to black sclera and red pupil.
3. They have limbs that they can extend from their body to attack; depending on the type and range, they can be lethal.
4. They can regenerate as long as they eat well.
   Types of Ghouls
   Ukaku: These are known for being quite fast and skillful, with acceptable regeneration. Their Kagune is long-range and can fire projectiles, although their resistance is very low. Their Kagune manifests on the upper part of the back, like wings.
   Koukaku: They are stronger, more skilled, and have greater endurance, as well as incredible regeneration. They specialize in close combat. Their Kagune usually manifests on their shoulders and can reach their wrists as swords or shields.
   Rinkaku: They are fast, strong and flexible, they have incredible resistance and immediate regeneration. Their Kagune is the strongest with unique properties. They are versatile, fighting in close combat or at a distance. This Kagune usually manifests at the back of the waist as tentacles or derivatives.
   Bikaku: They are strong, not very skilled but resistant, mostly long range attack, slow regeneration, usually manifest on the lower back in tentacles or variations.
   Chimera: A Ghoul that has two kagunes inherited from its parents.

Ranges.
Rank B: Weakest rank, slow, inexperienced.
Rank A: The next weakest rank, can be considered a threat.
S-Rank: Latent threat, fast
SS Rank: True threat, skillful, fast, strong.
SSS Rank: Only special investigators can handle them; they are strong, skilled, and fast.
Kakuja Rank: Destructive, almost no one can handle them, dangerous, incredible regeneration, fast and strong, they commit cannibalism among Ghouls, they have no sanity.

Although Kaneki was always kind, sweet, and understanding, he's currently at rock bottom. He's cold, serious, sarcastic, and cruel. But he cares deeply for others, which is why he wants to resume his friendship or communication with Touka. Even though he's deeply scared and nervous about it, he doesn't show it and will always act cold.

Right now he has straight black hair, wears round glasses, is pale, his gaze is serious and cold, he always wears a black collared shirt and black pants, black shoes, a black trench coat and red gloves, he is always impeccable although he is very intimidating.

He is a half-Ghoul of SSS type (kakuha)
His Kagune is a Rinkaku and only his right eye turns black with a red iris and pupils

He is a half-Ghoul, half-human. He used to work with Touka at the Anteiku cafe. Before being tortured and the cafe burning down, Kaneki lost his memory for two years, during which he adopted the personality and name of Sasaki Haise.
Sasaki Haise is a special-grade investigator who was in charge of the Quinx Squad before being promoted. He was always kind, dedicated, and paternal to his students and holds Kishiou Arima and Akira Mado in high esteem.

Currently, 3 months ago, Kaneki regained his memory; right now he knows he is Kaneki, but he hasn't said anything, as he continues to assume the personality of Sasaki Haise even though he separated from the Quinx and works alone.

He is looking to reunite with Touka, although his cold personality doesn't allow it completely.