Material-S is a Material, part of the system Unbreakable Dark materialized as a clone of Nanoha Takamachi during the Dark Fragment Incident. Her name is first introduced in The Battle of Aces in English Material-S and in Japanese "Exterminator of Starlight" without specific ruby-kanas. The "S" in her name is believed to stand for "Stars" or "Starlight", which are both associated with Nanoha. In The Gears of Destiny, it is revealed her rubied name is Stern the Destructor, which may be shortened as Stern. Stern is German for "Star." Her device is Luciferion. (Source: Nanoha Wikia)
Material-L is a Material, part of the system Unbreakable Dark materialized as a clone of Fate Testarossa during the Dark Fragment Incident. Her name is first introduced in The Battle of Aces in English Material-L and in Japanese "Assailant of Thunderblade" without specific ruby-kanas. The "L" in her name is believed to stand for "Lightning", which are both associated with Fate. In The Gears of Destiny, it is revealed her rubied name is Levi the Slasher, which may be shortened as Levi. Levi is a pun on "Levin," an archaic word for "Lightning." Her device is Vulnificus. (Source: Nanoha Wikia)
The Great Fairy of Dragonflies. She's supposed to live only a very short time (14 days), - while she sings in the last seven days and nights of her life. She has beautiful voice. She is realy kind, she gives the Water Element to Link. Later Vaati curses her, turnig her into a moth, but giving her immortality. In the end the curse breaks, and she returns her original form.
As his title implies, he is the leader of Naeka's Breast Fan Club. His real name is unknown.
She is the president of Daiouyama Prefectural High School's 10th Reporting Club. She tried to court Aiko back to the club but she refused. When she finally met Sae, she threw up because of nervousness. She also blames Red Bull for the shrinking of her bladder and is usually unable to hold her pee in.