Fairy Weapons (妖精武器, Yosei buki) are unique weapons developed by Freddie Bihain and are natural enemies to the fairies. Usually only powerful individuals are possessing them and there are only seven of them originally wielded by the Seven Knights. After the Unification war, they are being kept by the Ministry of Fairies under surveillance and only specific individuals are allowed to still have them, but normally an authorization is needed to use them.
Painsealer (ペインシーラー, Peinshīrā) is an unique fairy weapon that is also used as prosthetic arm. It has a spear hidden inside. It was used by the Seven Knight member Ewen Breeze. After his death, it was confiscated by the Ministry of Fairies. It was later taken by Glyph Mercer.
Verosteal (ヴェロスティール, Verosutīru) is a sword, who is lighter than a regular sword. The original owner was the Seven Knights member Jet Grave, but after his death upon his request it was taken by Free Underbar. Even though Free can use it, it's owned and observed by the Ministry of Fairies.
Gadfacs (ガドファクス, Gadofakusu) is a large sword specializing in cutting. Due to it's size its hard to use by most people. It belongs to the Seven Knights member Beevee Liscar.
Fratanil (フラタニル, Furataniru) is a shield and a short sword connected by a chain. The sword can be stored in the shield. It belonged to the Seven Knights member Garlan Battle. After his death, it was confiscated by the Ministry of Fairies. It was later given to Schwarz Diese.
Aliadra (アリアドラ, Ariadora) is the most difficult to use fairy weapon. It's a sword that can detach into smaller pieces turning into a blade whip. It's owned by the Seven Knights member Nein Auler and only she can use it without injuring herself. While Nein is the owner, it's managed by the Ministry of Fairies.
Sororias (ソロリアス, Sororiasu) is a spear with a three-point tip. It's said it's extremely sharp and you can cut yourself by touching it. It's owned by the Seven Knights member Ray Dawn. It's said when he uses it, a river of blood appears on the battlefield.
Morterant (モルテラント, Moruteranto) is a dagger owned by the Seven Knights member Haristan. After he committed suicide, the location of the Fairy Weapon is unknown. It was later revealed the weapon came into possession of Eajey Daven Thor and after his death it was taken by Veronica Thorn.