Realization dawned on Jacob at this moment; it was like a deep mist was cleared.
'So that's how it is! I always thought SAAI, Undying Will, and the likes of Black Rose were AI made with programs like in my old world; it turns out they are living beings, and extremely powerful ones at that.
'This Spirit Natural Intelligence Mechanic Race is born as a Legendary King State; I can only imagine how powerful their potential would be. Furthermore, didn't I also encounter that Spirit Natural Intelligence Phantasma in the Tower of Taurus?
'It was a treasure created by Spirit Natural Intelligence Mechanic's Ultimate Algorithm as a core, so it might be the same as these Machina Units. It seemed I had missed a pretty powerful treasure, but no matter what, I won't regret my choice.