Teigu

Teigu (帝具, Imperial Arms) are mysterious and extremely powerful relics that exist in the world of Akame Ga Kill! They are rare, and only the strongest of warriors are able to wield them. Some have the appearance of equipment or weapons, while others seem to be living creatures. It is implied that a form of magic was used to create them.

Origin
The Teigu were created on the instruction of the First Emperor, who feared that the Empire he had founded would eventually fall. To prevent this, he ordered many scientists to make strong weapons and defenses, and the Teigu are the result of their efforts. There were 48 Teigu in all, but almost half of them were lost during a civil war about five centuries before the start of the story. Several Teigu have been seen to be destroyed; it is not known how many of the original 48 remain.

Many Teigu were created from the remains of Danger Beasts that had unique powers, imbuing the equipment with special abilities. Many weapon and armor type Teigu were forged from a rare metal called Orichalcum. Teigu are not limited to one ability; some are known to have secret powers that are yet to be discovered, and some have powers that are lost to history.

Usage and Limitations
While the Teigu give its user amazing powers, they are not almighty. It is stated that there is no Teigu that can resurrect the dead. Even if a user is strong enough to use a Teigu, it can still reject them, and a user's first impression of it affects their compatibility. The user must be compatible with the Teigu in order to wield it.

Biological Teigu are shown to be capable of regenerating after serious damage, but are not indestructible; if their core is destroyed then so is the Teigu.

If two users of Teigu were to fight each other, one of them is guaranteed to die.

Known Teigu
Of the original forty eight teigus created by the First Emperor, only twenty six have been shown so far, out of which seven are in the posession of The Empire, fourteen are in the posession of The Revolutionary Army, and four have been destroyed, only missing one with unknown whereabouts.

The Empire

 * 1) Adrammelec - Owned by Imperial Guard General Budo
 * 2) Demon Armor: Incursio - Formerly owned by Night Raid's Bulat †  | Tatsumi
 * 3) Infinite Uses: Cross Tail - Formerly owned by Night Raid's Lubbock † 

The Empire's Jaegers

 * 1) Demon Armor: Grand Chariot - Owned by Wave
 * 2) Demon God Manifestation: Demon's Extract - Owned by General Esdeath
 * 3) Soaring for Thousands of Miles: Mastema - Owned by Run † 
 * 4) March of the Dead: Yatsufusa - Owned by Kurome

The Empire's Wild Hunt

 * 1) Blood Collection: Absordex - Owedn by Dorothea

The Revolutionary Army

 * 1) Ace Solution: Die Leaguer - Formerly owned by Wild Hunt's Champ † 
 * 2) Cutter of Creation: Ecstasy - Formerly owned by Night Raid's Sheele †   | Team Stylish's Kaku † 
 * 3) Double Bladed Axe: Belvaac - Formerly owned by Three Beasts' Daidara † 
 * 4) Glorious Hands of God: Perfector - Formerly owned by Jaegers's/Team Stylish's Dr. Stylish † 
 * 5) Great Tremor: Heavy Pressure - Formerly owned by Wild Hunt's Cosmina
 * 6) Military Music Dream: Scream - Formerly owned by Three Beasts' Nyau † 
 * 7) Moonlight Sword: Shamshir - Formerly owned by Wild Hunt's Enshin † 
 * 8) Omnipotent five sights: Spectator - Formerly owned by serial killer Zank the Beheader † 
 * 9) Water Dragon Possession: Black Marlin - Formerly owned by Three Beasts' Liver † 

The Revolutionary Army's Night Raid

 * 1) Animal King: Lionelle - Owned by Leone
 * 2) One Cut Killer: Murasame - Owned by Akame
 * 3) Roman Artillery: Pumpkin - Own by Najenda | Mine

Unknown whereabouts

 * 1) The Mysterious: Adayusu - Formerly owned by Path of Peace's Horimaka † 

Destroyed

 * 1) Dimensional Formation: Shambhala - Formerly owned by Wild Hunt's Syura † 
 * 2) Phantasmagoria: Gaea Foundation - Formerly owned by Night Raid's Chelsea † 
 * 3) Magical Beast Transformation: Hekatonkheires †  - Formerly owned by Jaegers' Seryu<span style="color:rgb(84,84,84);font-family:arial,sans-serif;font-size:small;line-height:16.545454025268555px;"> † 
 * 4) Purgatory's Invitation: Rubicante - Formerly owned by Jaegers' Bols<span style="color:rgb(84,84,84);font-family:arial,sans-serif;font-size:small;line-height:16.545454025268555px;"> † 
 * 5) The Speed of Lightning: Susanoo<span style="color:rgb(84,84,84);font-family:arial,sans-serif;font-size:small;line-height:16.545454025268555px;"> †  - Formerly owned by Night Raid's Najenda