|Universe||Brain Powerd Universe|
|Homeworld||Earth (born from Organic Plate released from Orphan)|
The Antibody, also known as Organic Machine are species of large humanoid life form that appear on Earth as Orphan, a gigantic alien with size of starship emerges from its deep slumber, about to leave Earth. The Antibodies born (the process known as Revival) from objects known as Organic Plate. Antibodies are armed since their birth with weapons (Sword Extension or Brain Bar) that function like a sword and energy rifle, and are also capable of using various weapons hand-held manufactured by humanity such as missile launchers. They can create a "Chakra Shield" force field to protect themselves as well. Antibodies live off their self-generated Organic Energy and require no diet. Although they can become tired after extended periods of activity. Certain Antibodies such as Nelly Brain are also said to use the energy of the pilot as their own. Antibodies are capable to self-regeneration, although the ability is limited to minor scar/damage; a missing limb must be replaced by artificial body part. The Antibodies also born with an internal "cockpit", allowing other sapient species such as Humans to control them.
There are two major sub-races among Antibodies, Gran Cher and Brain Powered. Aside from their appearance, Grand Cher have more "stoic" personality. Most humans can board inside Grand Cher and command them like combat vehicles, although they may not respond to more emotional people. Brain Powerd, on the other hand, display more personality and won't allow one they dislike to control them. Brain Powerd will seek specific Humans as its partner and usually stick with single partner through its life. Most Grand Cher are used by the Reclaimers, a group of humans who want to leave Earth along with Orphan. While Brain Powerd are mostly used by Novis Noah, an opposing force trying to prevent Orphan's departure, as it will siphon lifeforce from all beings on Earth, leaving it as dead planet.
Rarer types of Antibodies are:
- Brain Children: these are pair of smaller Brain Powered that revive as "twins" from a single Organic Plate.
- Nelly Brain: An incomplete evolution of Brain Powerd said to be more powerful then the average Brain Powerd. Nelly's Brain eventually goes through Revival a second time by fusing itself with Isami Yuu's Brain Powerd.
- Finally, the Baronz, an evolution of Grand Cher. Unlike other Antibodies, Baronz do not use handheld weapons but has extendable fins on its shoulders which can be use as melee weapon or emit energy attacks. If fed with massive Organic Energy, Baronz can grow into a more gigantic form, draining the human pilot of their lifeforce until they are nothing but a withered husk/