Jade Nail

Jade Nail (ジェイドネイル, Jeeidoneiru) is a black skull who is one of Elq Hrqstn's guardians and a member of the three Poteau. Jade Nail has yet to appear in a official capacity in the light novel series, but he is regularly mentioned in all of the Suka Suka media, making him a minor supporting character.

Background
Jade Nail is a black skull who was a member of the Poteau, one of the three pillars who guarded the Star God (Visitor), Elq Hrqstn.

Origins
Jade Nail was originally one of the Poteau, one of the three pillars who guarded the Star God (Visitor), Elq Hrqstn, along with Ebon Candle and Carmine Lake. He came to the planet with the original race of ascendant humans called "Visitors." While all of the other Visitors began terra-forming the planet in the hopes of recreating their home world, Jade Nail was mostly kept confined to the Visitor spaceship in order to raise and take care of Elq, along with the other two Poteau, Ebon Candle and Carmine Lake

Eventually, the Visitors started turning all of the natural creature inhabitants into Humans/Emnetwihts by breaking themselves into curse fragments. They also created the other races like the Lycantropos to prevent the Emnetwihts from growing too much. After this process was completed, Elq and the Poteau were left behind as one of the few remaining Visitors left. Elq and the Poteau then went into a deep sleep that lasted for hundred and thousands of years.

War with the Emnetwihts
As hundred and thousands of years went by, the curse that kept that Emnetwihts in their human forms eventually started to fade. Faced with the prospect of eventually turning back into beasts, the humans formed an organization called 'True World' that naturally sought to recreate the curse that kept them humans. Eventually, the group discovered that they could this achieved by using the corpse of a Visitor.

With that idea in mind, the Emnetwihts created the Regal Braves, the Carillons and various military weapons to take control of other nations and to combat the Poteau and Elq with. Sensing the danger to Elq, Jade Nail left the sanctuary where Elq was held and started a war with the humans. After a while, Carmine Lake soon left to find him. Eventually, Carmine Lake and Ebon Candle joined the battle with him tool.

Final Battle
Eventually, the humans naturally isolated themselves from the other species because of their militant ways, so they sought one last battle to decide the fate of the world. During the final battle of the Poteau's War against the Emnetwihts, Jade Nail fought against Souwong Kandel and Emissa Hodvin and after a tough battle, managed to kill the both of them, before dying himself.

As of Suka Moka, it is still not clear what happened to him after the final battle.

Appearance
Jade Nail is a tall alien creature who resembles a black spiky demon, according to a poster in Gomag. Whether or not this is his true appearance is still unknown.

Personality
In the past, Jade Nail most likely had a serious, but grumpy personality. He was the most fierce of the Poteau and was deeply devoted to protecting Elq. He was even willing to go to war with the Emnetwihts in order to protect her.

Weapons
Jade Nail's main weapon was a long black lance that resembled a nail.

Immortality
As an ascendant being, Jade Nail is naturally immortal. He is incapable of physically dying under normal circumstances except when it comes to weapons like Seniorious, which could possibly put him into a physical death-like state.

Regeneration
As a Poteau, Jade Nail has limited regeneration. While he can quickly recover from minor wounds like bruises and scratches, major injuries like sliced off limbs or broken bones does take more time for him to recover. Jade's regeneration is so powerful that can regenerate his body, even if it's destroyed. However, this recovery process does require him to sleep from a period of years to millennia, depending on the extent of the damage to his body.

Spell-casting
Jade Nail has the power to cast a wide variety of spells. He has massive magical energy reserves and could possibly destroy a country with it.