Before Eden was destroyed, the Golden Empire stood high on the mountains of the land.
It was overseen by the Grand Techian which were the Eden's top leaders that broke off into different branches.

You had Overseer of Security/War, Industry, Agriculture, Research/Engineering, medical, and lastly Interstellar Exploration

Rashida - Security/War
Meridian - Interstellar Exploration
Sagira - Research/Engineering
Tiran - Agriculture
Shikoku - Industrial
Althea - Medical

With Eden being so technologically advanced, the people of Eden have fused themselves with said technology. Their robotic "parts" are small on a microscopic scale, with the use of nano-machines. Essentially, putting a drop of their blood under a microscope and little robotic orbs will be seen among them.
With this trait, sometimes when their blood is shown it sometimes looks bit glittery or in some case an oil spill.

They call themselves Techian although other words refer to them as Synths. They have typical hierarchy ladder depending on which Series a person is dictates their primary function, and ranking.

For example, Jin actual designation is J-101 a J-series drone designed for mobile medical applications.

A medic essentially but that is how the techians describe it.

The series go from A to Z with some letters feering to the Greek Alphabet at times. With the Alpha series being the Grand techians, so forth.
Jin is somewhat middle of the road totem pole, he doesn't get all the respect or benefits as someone in the Alpha to Delta series.
This system is of course corrupted and has its downsides with the feeling of superiority to other Synths.

Techians are produced from their particular Kindergarten, where they are manufactured, barcoded, and branded the signature black star mark. One they are trained and pass their Primary Stage, their exam results decided who and where they will work.

Absentias - the failures are decommissioned and tossed to the Wasteland for spare parts where the Zulu Series works.

Despite the differences each series usually has unique abilities to that specific chains.
The Alpha chain being the only where each techians has their unique ability to them.

The J-series for sin is abundance related abilities, that being said there is a possibility of running into another Jin.

Jinadath was name he took on once he survived, but in reality his real name is J101 or just "J" for short.

-bloodhound-