Anti-Spiral

Anti-Spiral Tribe (反螺旋族, Hanrasen Zoku) are a mysterious species of humanoid beings that realized the danger of the Spiral Nemesis long ago. They found the means to cease their own evolution by purging themselves of Spiral Power, trapping them in a state of suspended animation as their collective consciousness took form to purge the universe of all Spiral beings.

Early History
Nothing is mentioned about their lives before they became Anti-Spirals besides that they were once normal Spiral lifeforms. Once they realized the danger of the Spiral Nemesis, they halted their own evolution and purged themselves of spiral power. They remain as white humanoid creatures with no individual identity. Their collective identity continued their duty by fighting all Spiral lifeforms so that they can be limited, and the Spiral Nemesis can be avoided.

First Anti-Spiral War
The Anti-Spirals found heavy resistance on Earth, since this was the home of the native Spiral warriors. The Spiral warriors held off the Anti-Spirals, driving them back into space, before pushing further into Anti-Spiral territory.

However, with the number of Anti-Spirals increasing as they pushed further in, the Spirals couldn't find the location of their enemy's base of operations, and soon both sides fought each other to a stalemate. This war of attrition continued until Lordgenome learned about the Spiral Nemesis and, as shown in Parallel Works episode 8, turned on the rest of the Spiral warriors in order to prevent more potential casualties. After the defeat of the Spiral Warriors of Earth, Antispiral set up numerous Human Extermination Systems all across the planet (some were in the form of unaware human beings), like Nia, warning Lordgenome that if the number of humans on Earth exceeded one million, they would activate these systems.

When the population exceeded one million, a single Mugann appeared to begin the attack while Nia, Antispiral's messenger, had awakened the Anti-Spiral gene that layed dormant within her. The moon (really the Cathedral Terra) began to collide with the Earth to destroy all Spiral life on the planet. When Rossiu attempted to escape with a small portion of the human population to space in the Arc-Gurren, they were met with an ambush of Mugann. Gurren Lagann merged with the Arc-Gurren and defeated the Mugann and reclaimed the Super Galaxy Dai-Gurren. When Team Dai-Gurren arrived in Antispiral's Universe, Antispiral sent Ashtanga-class battleships and mass-produced Anti-Spiral mecha to fight them. They played possum with Team Dai-Gurren, then began to defeat nearly all of the veteran Gunmen pilots. They then knocked the Super Galaxy Dai-Gurren into the Death Spiral Field, causing the attempt to transform into the Super Galaxy Gurren Lagann, to fail, since the Death Spiral Field drains all occupants of Spiral Power.

When Team Dai-Gurren escaped, while also absorbing all the Spiral Power the sea had absorbed over time, allowing the Super Galaxy Gurren Lagann to emerge, he fought back with more Ashtanga and mass-produced Hastagry and Pada mecha, but were defeated quickly. Antispiral then sent Team Dai-Gurren's consciousnesses drifting throughout the multiverse with the Multiverse Labyrinth. While they were trapped, Antispiral probed Nia for answers for her betrayal. Gurren Lagann appeared and rescued Nia. To counteract the newly created Tengen Toppa Gurren Lagann, Antispiral created the Granzeboma. Despite nearly winning the battle, Antispiral loses when Simon, Nia and Boota (in Lagann) were thrown at him by Viral, using Lagann Impact. Before dying, he tells Simon that protecting the universe from the Spiral Nemesis is up to him, before his energy and universe were destroyed.

Known Anti-Spiral Lifeforms

 * Antispiral
 * Nia (Hybrid)

Trivia

 * The Anti-Spirals might have something to do with Lordgenome's red Spiral Power. As seen in Parallel works 8, after conversing with Antispiral, Lordgenome's coloring changed from green to red. While they could have been done for the mood, it might also be an explanation to his unique red Spiral Power as a representation of a Spiral lifeform's falling into absolute despair.