Kyōkotsu

was the first of the Shichinintai to appear in both the anime and manga, and thus, the first sign of the revival of the Shichinintai. He was presumably the weakest of the seven, despite his abnormal size. He had an appetite for human and yōkai flesh.

History
Kyōkotsu was a member of the Shichinintai mercenary group. Fifteen years before the series began, they took a job for a lord; only to be betrayed and forced into the snowy mountain. They were soon captured and executed. Kyōkotsu and the other Shichinintai members would then be revived when Naraku would give the leader Bankotsu seven Sacred Jewel shards.

During the story
Following the revival of the Shichinintai, Kyōkotsu moved on ahead of the other members. He had been devouring the wolf demons in the area. Kyōkotsu had a short meeting with Kohaku; Kyōkotsu attempted to take Kohaku's jewel shard, but to no avail. He decided to leave him alone after learning Kohaku was under Naraku's protection. After being told of his destruction, Kōga sought him out, and the two fought. Quickly, the fight escalated into a clash where Kōga got the upper hand by twisting his neck.

Kyōkotsu quickly grabbed Kōga after he was distracted by Ayame. Kōga punched through his forehead after the latter attempted to devour him and ripped out his jewel shard, killing him. His jewel shard was taken by the Saimyōshō to be given to Bankotsu.

Physical description
Kyōkotsu had spiky dark green hair and bloodshot, beady eyes. Under his eyes were a pair of dark blue stripes. He had teeth that were rather sharp, jagged, and near demonic in appearance. Perhaps his most obvious physical characteristic was his abnormally large body; his body was such a size most likely because he had devoured many yōkai and his body mutated as a result.

Outfit
Kyōkotsu wore a red skirt with a white trim on the bottom edge. He had a yellow sash tied like a belt around his waist. He wore blue chest pads as a form of armor, and two black pads on his shoulders. He also tied a black headband around his head to hold back his short green hair.

Powers & Abilities
Due to his large size, Kyōkotsu possessed a great amount of strength and endurance, even being able to create a deep crater when he punched the ground. He was also skilled with a flail which had been made to suit his large body. He was also able to survive having his body contorted in ways that would normally be lethal, possibly due to his jewel shard.

Trivia

 * Unlike the other members of the Shichinintai, Kyōkotsu's jewel shard was located in his forehead. Probably due to his flexible neck.
 * Kyōkotsu, along with Mukotsu, were the only two members of the Shichinintai who did not get their own individual theme music in the InuYasha Official Soundtrack. This was most likely due to the fact that they were both killed quickly after being introduced.
 * Although he was called the weakest of the Seven by Jakotsu compared to Mukotsu, when each faced a full blooded demon, Kyōkotsu was easily stronger, as he fought Kōga well and killed numerous demons prior, where as Mukotsu was easily killed by Sesshōmaru. However, Jakotsu may have based this assessment on their power before their resurrection. The strength of their opponents should also be taken into account; Sesshōmaru is many times more powerful than Kōga.
 * His seiyū, Daisuke Gōri, also provided voiceover work for Mermaid Forest, which was based on Rumiko Takahashi's series.

Media appearances
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Manga

 * Chapter 234
 * Chapter 235
 * Chapter 245
 * Chapter 258
 * Chapter 276

Anime
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 * Episode 102
 * Episode 103
 * Episode 108
 * Episode 110
 * Episode 114
 * Episode 116
 * Episode 120
 * Episode 121
 * Episode 122
 * Episode 123