Yumitsu Tomoe

The Grave Robber (墓盗り, Hakatori), also known as the Quinque Hunter (クインケ狩り, Kuinke Gari), is a member of Aogiri Tree, and a direct subordinate of Tatara.

Personality
The Grave Robber has a habit of collecting quinques since using three bikaku consumes more energy than a single bikaku.

Grave Robber also seems to like the idea of battling another Bikaku-type ghouls or a quinx of the same Rc type.

Rosewald Investigation
Grave Robber is among the Ghouls hired by Kanae von Rosewald to assassinate the Quinx Squad, and lies in wait at an isolated parking garage as part of a trap.

When Karao Saeki is injured by Tooru Mutsuki, the Grave Robber intervenes and prepares to face the Quinx in battle. After having the upper hand in the battle due to their kagune, Urie appears and takes over the battle for Mutsuki. Finding the plan out of control, Grave Robber decides it is time to flee and escapes.

Karao Saeki
The Grave Robber arrived to fight Mutsuki when Saeki was overpowered.

Powers & Abilities
The Grave Robber is a skilled Ghoul, with a powerful Bikaku kagune. However, due to the unusual rate of RC consumption, the Grave Robber typically uses stolen Quinque in battle.

Quinque
The Grave Robber is an unusual Ghoul that has a preference for using Quinque in battle. While seen using a katana-like Quinque, the Grave Robber mentions having a personal collection taken from slain Investigators.

Kagune
The Grave Robber is a Bikaku with a three-pronged tail, claiming it to be exceptionally sharp. However, there is a flaw which causes using it to be extremely draining. As such, the Grave Robber prefers to avoid using it in combat.

Trivia

 * The Grave Robber is referred to as "Little Bin (小瓶, Kobin)" by Hooguro, suggesting a relation to the Bin Brothers.
 * The Grave Robber's gender is currently unknown, as a result of their androgynous appearance.
 * The Grave Robber bears some similarities to other specific characters: Kureo Mado, as both are collectors of Quinque, and Miza, since they both have triple-bladed bikaku kagune.
 * Similar to an Ukaku ghoul, the Grave Robber's RC cells are drained significantly by use of their kagune despite being a Bikaku ghoul, leading to a habit of quinque collection.