Prime Field (素体 Sotai) is a special type of artificial human created for the study of the Boundary.
Original worldIn the original world, the Contact Prime Fields (接触用素体 Sesshokuyō Sotai) were created by humans to contact the Amaterasu Unit in the Boundary. The Unit answers only to objects with human form, and people are unable to survive in the Boundary, this is why they created the Prime Fields.
The first Prime Field, later on dubbed as the Origin, who managed to make contact with the Amaterasu Unit, made her known as the First Contact (第一接触体 Dai-Ichi Sotai). In result, she acquired a soul, self-awareness, and the Power of the Eye, the ability to Observe. With this force, the rest of the Prime Fields gained souls and self-awareness.
People were afraid of the Prime Fields, which were supposed to be used only as tools, and started against them a war.
BlazBlueThe Dimensional Boundary Contact Prime Field (次元境界接触用素体 Jigen Kyōkai Sesshokuyō Sotai, localized as Boundary Interface Prime Field Device) is a type of artificial humans created from the Magic Element.
It is believed that the very first Contact Prime Field, the Zeroth Prime Field (第零素体 Dai-Zero Sotai), was created by Relius Clover. As a result of one of the experiments, this model contacted the Master Unit and gained the soul, receiving a huge amount of data, and gaining the power of the Blue. This sample was thrown into the Kiln, and the data collected by it was used to create the Takamagahara System.
After that, humanity decided to destroy the Master Unit, creating for this purpose a special sample: Murakumo Unit. Various organizations created samples 2-10 of this type, but none of them could become Kusanagi. During the Ikaruga Civil War, Relius created the 11th, 12th, and 13th samples, taking Saya as their basis.
Bloodedge ExperienceThe Dimensional Boundary Contact Prime Field Es (次元境界接触用素体Es Jigen Kyōkai Sesshokuyō Sotai Esu) is a type of artificial human. Kiiro Hikagami is the 7th sample. She is created from the remnats of the other samples destroyed by Spinner Superior.
XBlazeThe Boundary Contact Prime Field Manifestation (示現境界接触用素体 Jigen Kyōkai Sesshokuyō Sotai), also known as Embryo Storage (エンブリオストレージ Enburio Sutorēji), is an artificial life form which serves as a back-up vessel for the Embryo. The only known Embryo Storage is Es.
- In BlazBlue: Calamity Trigger, "Dimensional Boundary Contact Prime Field" is localized as "Dimensional Boundary Contact Prime Field Force" and "Dimensional Boundary Contact Medium". Since Calamity Trigger Reconstruction in BlazBlue: Continuum Shift Extend, it's "Boundary Interface Prime Field Device". In BlazBlue: Centralfiction appears also "Dimensional Interface Prime Field Device" variant.
- It was said in BlazBlue: Phase 0 that the Zeroth Prime Field Model was used in the experiment that resulted in Black Beast's appearance. In BlazBlue: Continuum Shift Extend it was said that the First Prime Field was used in this experiment.
- BlazBlue Contact Prime Fields' names come from the Greek Alphabet.