Rinkaku kagune (Japanese 鱗赫, romanization rinkaku, English scale-red) has an appearance similar to scaled tentacles and is released at the back around the waist. A rinkaku wielder has powerful regenerative abilities that some of them could even survive the most critical damage done to them. Kaneki Ken, a rinkaku, has abnormal regenerative abilities as he inherited Rize's kagune which is special because of its abnormal regenerating factor even among the rinkaku types. Its peculiar appearance and structure yield a superior striking power. A rinkaku excels in brute strength. Some rinkaku users are able to manipulate the shape of their kagune, such as changing its usual tentacle form into swords or claws.
This type's regenerative power is a result of the Rc cells easily binding together. Their Rc cells are more similar to liquids. However, this means that the binding force among the Rc cells must be weak, therefore making the kagune very easy to break. But because their Rc cells bind so easily, some rinkaku can bind their multiple tentacle-like kagune together to make a larger, stronger kagune.
A rinkaku kagune can deliver severe strikes against the slow koukaku, penetrating the kagune and breaching the koukaku's defenses. However, a rinkaku has serious problems fighting against the balanced bikaku kagune: A bikaku has comprehensively high power, allowing them to fight against the brute-force rinkaku, and the rinkaku kagune's softness makes it comparatively easy for the bikaku to cut the kagune off. This disarms a rinkaku no matter how much strength it may possess, leaving the rinkaku at a disadvantage on the defensive. It has been shown that in some cases, a Bikaku's attack can disable a Rinkaku's regeneration. [2]