Nia Teppelin

thumb|alt=|left|Nia's kindness. Nia is a kind, caring, sweet and soft-spoken girl who always likes people to be happy and she is highly empathetic to others, especially Simon. She naturally tried to comfort Simon when he was distressed over Kamina's death, saying that he isn't helpless on his own and shouldn't be so dependent on Kamina, but ends up upsetting a heart-broken Yoko Littner to the point where she shouted at her and stormed off. She is never intentionally mean and almost always has a smile on her face even when she was fading away in the last episode of the series. Throughout her travels with Team Dai-Gurren, Nia opts for a change in her personality a little as she eventually follows Kamina's words and believes in Simon with her entire being. Also in her travels, she shows a rational thought process similar to Yoko and is very willing to stand up against the odds when need be. Likewise, she is a bit rash though and will not hesitate to throw herself into the fray to try and reason with the enemy. In season 1, she does so three times (although one of them was addressing soldiers about them sacrificing themselves.). In this regard, Nia can often be oblivious to certain words and meanings due to her sheltered life.

Pre-Timeskip
left|thumb|Nia as she appears in the Beastmen War arc. Nia is a beautiful and delicate-looking peach-skinned young girl of average height with curly light blue/pale blonde hair that appears immaterial, floating and moving like a cloud with hair tips resembling the edges of a blue-gold cloud and unique blue eyes with pink crosses ("+") for pupils (designed to look like flowers). Her initial appearance shows her to have extremely long hair running down her back until it is one day ruined during the gunfire of battle (caused by Yoko Littner pretending to shoot her in the head but missing on purpose to hit the gunmen's shoulder) and she later asks Yoko to cut it to just above her shoulders. She wears a variety of outfits, mostly pink and white.

thumb|Nia overflowing with Spiral Power Spiral Power: As a Spiral being, Nia is capable of evolving with the use of Spiral Power, becoming more capable as she retains her willpower or "fighting spirit". In Episode 27, Nia, like all other members of Team Dai-Gurren at the time, has unlocked and has access to infinite amounts of Spiral Power (via being given the same power as Simon) and is capable of using it in any possible way. As all members of Team Dai-Gurren have fully awakened their Spiral Power, she should be just as capable without the use of Gunmen as well; additionally having every capability the Tengen Toppa Series have shown, similar to Lordgenome and Simon. Towards the end of the final battle, Nia with Simon in Lagann, were able to kill Antispiral, with their combined Spiral Power. * Gunmen Piloting: Gunmen were created by the Spiral King, Lordgenome, for Spiral Warriors to pilot, using their Spiral Power to power and control mecha. Additionally, the condition of the Gunmen is reflected upon the pilots; ie, the pilots feel the pain and retain the injuries. Spiral Power doesn't just power the Gunmen, it also assists the mecha in producing abilities for the user to adapt to certain situations in battle. *Reality Warping: In the movie, Nia's emotions manifest a Tengen Toppa Gunmen (emotions being a subset of Spiral Power); Tengen Toppa Solvernia, to fight against Antispiral. Superhuman Strength: Even without the use of Spiral Power, Nia has a consistent list of feats that showcases supernatural strength. In Episode 11, she slaps one of the Four Heavenly Kings, Guame, across the room in a short fit of anger. Yoko Littner in the episode right after states that Nia is formidable after she slams a volleyball towards her. This feat is very impressive, considering that Yoko with her bare hands pinned Adiane's tail down, to which a spray of her Superconducting Rifle's bullets was effortlessly deflected by the same tail. In Lincarne's Electromagnetic Prison, she could effortlessly defeat Viral in a fist fight; the latter who, in his fight with Simon, kicked a Beastman through a wall. She is even treated as a threat by Simon, who, at that moment, has even gained further control over Spiral Power. While manifesting the power of the Spiral in his hands, in front of her, he states that he refuses to die, and insists that she does her worst to him. Superhuman Speed: In the anime, Nia managed to split a watermelon in a single swing, which Yoko failed at multiple times in the same task. In Episode 20, Messenger Nia manages to move her entire body out of the way of the trajectory of Yoko's bullet, which are mentioned to move at hypersonic speeds in the novelization; which is corroborated by her sniper rifle functioning like a railgun. She dodges an attack from someone who she's, heavily implied, not aware is there. In the manga version of Episode 20, as Yoko fires her Superconducting Rifle, Nia moves just her hand out of the way of the bullet. Nia is even capable of reacting to Gurren Lagann's drill last second, getting out of the way. In the movie, she is capable of moving out of the way of Arc-Gurren Lagann's drill. Supernatural Willpower: Most of the time, Nia has been seen as this feeble and dependent princess, but in times of desperation, she has been shown that she is anything but. When the information she had gathered was being analyzed by Antispiral, she continued to hang onto her existence with her regenerative ability, even when she continued to lose her limbs in the process; it was all so that Team Dai-Gurren could still have a chance at winning the war against Antispiral, with her being the key to the transporting to Antispiral's universe. Even when Team Dai-Gurren's consciousness were floating throughout the multiverse, Nia still refused to give up, and continued to believe in them, fighting back with everything she could, until they would later arrive to have her rest assured that she wouldn't ever have to go through that again. Anti-Spiral Power: Similar to Antispiral, Nia herself is capable of shooting energy from her hands. In the movie she is shown using this ability to effortlessly defeat Viral. She isn't limited to shooting it, as she is also capable of keeping the energy in her hand for close quarters combat. Regeneration: In the anime, it is shown that right after Simon frees Nia, every missing piece of her body (which would include limbs, stomach, breasts, neck and face) is brought back in an instant. After the creation of the Tengen Toppa Gurren Lagann, all members of Dai-Gurren were given the ability to reform their bodies as long as their consciousness exists; demonstrated by Lordgenome. *Memory Manipulation: In the novelization, it is revealed that Nia is capable of regeneration by using her memory and spinning it with her body. *False Information Creation & Implanting: Nia may create false information or dummy data to begin regeneration. As her body stores information, she can r...