Earth Grudge Fear


 * Name: Jiongu (地怨虞, lit. Earth Grudge Fear)
 * Type: Kinjutsu, Offensive, Defensive, Supplementary
 * Users: Kakuzu

This is Takigakure village's most prized forbidden technique that Kakuzu has taken with him during his revolt. This technique turns the user's body into a rag-doll like body, held together by hundreds of thick black threads. Kakuzu is able to manipulate these threads for many purposes. He can detach his limbs and manipulate them for long range attacks, as well as sew up any injuries that he suffers. He can also use these threads to sew up damaged bodies of others, as demonstrated with Deidara's arms and Hidan's head.

The most significant point of these threads are that they grant Kakuzu a form of immortality (though he declines to think of it that way). Aside from sewing up his injuries, he can use the threads to tear into a victim's body and steal their still functioning organs and integrating them into his own body, extending his life. Kakuzu usually uses this method to steal hearts from powerful shinobi, and he stores five hearts in his body, which means that he must have all five hearts stopped to truly die.

These hearts Kakuzu took from others are stored in various animal masks sewn onto his back, and they grant him vast amounts of chakra and numerous elemental affinities. He can detach these masks and have them form bodies composed of the a blanket of threads, and they can attack seperately, unleashing devastating blasts of elemental chakra.

These threads can also compact together, forming a spider-like body around Kakuzu, and allowing him to fuse the attacks of his masks together, increasing power.

Masks
Each of these masks, held together by Kakuzu's black threads, stores another shinobi's heart and gives him vast amounts of chakra and elemental-affinity, as well as an extension of lifespan. They look like the masks that ANBU wear.


 * Water mask: This mask and such techniques is never present, but since Kakuzu is from a waterfall based village, it can be assumed that his original heart (or a shinobi that did have such a heart, as his original heart might have died of old age) remains in his true body.


 * Earth mask: It is unknown what animal this mask is, as it was destroyed before it could be seen, but the heart has an earth-affinity. It allows Kakuzu to harden his entire body, which forms a near-invincible defense, and Kakuzu can harden parts of his body to strengthen his strikes.
 * Related techniques used:
 * Iron Body
 * Earth Release: Earth Spear


 * Tiger-like mask: This heart has a fire-affinity and it takes on the shape of a demonic bear body. It can launch destructive waves of fire. It can unite with the Eagle-mask to launch a fire-wind dual strike that is near unstoppable.
 * Related techniques used:
 * Fire Release: Intense Pain


 * Bull-like mask: This heart has a lightning-affinity and it takes on the shape of a deformed bipedal body. It can launch twin bolts of lightning that can pierce through enemies.
 * Related techniques used:
 * Lightning Release: False Darkness


 * Eagle-like mask: This heart has a wind-affinity and it takes on a strange four-legged body with thin wings. It can launch a heavily dense and high-pressured tornado that can blow away anything in its path. It can unite with the Tiger-mask to launch a fire-wind dual strike that is near unstoppable.
 * Related techniques used:
 * Wind Release: Pressure Damage