could you explain the difference between prime field devices and murakumos? i was under the impression they were one and the same. as a followup could you explain what the deal with the origin is? like why does she look like saya, and therefore murakumos 11-13?
Prime Fields are lifeforms designed to enter the Boundary. There are 13 of them, from Alpha-1 to Nu-13. They’re not the same as a Murakumo Unit, of which there is only two - Kiiro Hikagami and Nu. Kiiro really hasn’t been explained too much so I won’t talk about her, and Nu uses the Lux Sanctus: Murakumo Nox, which is why she’s called that.
Lambda is a Murakumo Unit imitation thanks to Kokonoe’s upgrades, and Mu is a Kusanagi.
The Origin was the first Prime Field to go into the Boundary. She made contact with the Amaterasu Unit, and became an Eye of the Azure - she became an Observer, had gained a soul, and could create phenomenon interventions; basically, she was a God to humanity. Anyway, humanity didn’t like this, they got scared and started the Prime Field War. After The Origin recreated the world, each Prime Field would have a little part of The Origin’s soul within them.Â
Anyway, one of these Prime Fields, known only as Number 5 (she’s not called Epsilon-5 in the game so I’m not calling her that), not only had a piece of The Origin’s soul, but she was also based off of a woman who could infinitely amplify seithr, but this woman was killed by her brother (it’s hinted, but not confirmed, that this woman was Saya Terumi). Ragna, Jin, and Saya are all her “children”, but she was killed by Jubei a while ago. Saya inherited her ability to be able to amplify seithr, and also had a part of The Origin’s soul.
Lambda, Nu, and Mu were all based off of Saya. Lambda and Nu, despite having parts of The Origin’s soul, eventually became their own individuals. Mu had the largest part of The Origin’s soul because of the energy from the massive blast from Take-Mikazuchi. This part of the soul is basically Noel.
As to why Saya looks so similar to The Origin? Well, that’s not explained, but it’s possibly because of the methods used to create her mother, Number 5, but Relius stated that he didn’t know how it was done. So right now it’s a mystery, so I hope the unnecessarily complicated lowdown on The Origin is enough for now.
