Integer Essentiae

Early Life
Integer was born to an Outsider and an Essentiae 46 years before the events of PSitME. His father, the Outsider, died before he was born. His mother died when he was young. He spent most of his early life studying Overseer biomechanics, becoming obsessed with them and building a lab to study them.

Flashback Era
At 16, 30 years before the events of PSitME, he met and married a 17-year-old Aria Loajin. They had two children together, Danaris Loajin and Axiom Essentiae, but divorced several years after Axiom was born. This led Integer to become even more obsessed with creating an artificial Overseer, and to neglect Axiom. One day, he disappeared into his laboratory and never returned, causing Axiom to assume he had died.

As Project Aleph
See: Project Aleph

During the events of PSitME, Integer wakes up in his laboratory, fused with his biomechanical creation dubbed Project Aleph. This fusion of mechanism and Soul functions similarly to a Historian, but lacks the physical Body needed to exist in the Aether.

As Integer
As Integer, he is a direct descendant of Hannah Essentiae's bloodline. Thus, he excels in the Inverse Triad, particularly levitation. This allows Integer Essentiae to control particles at even the subatomic level through levitation. As a male descendant of the Essentiae Bloodline, he suffers from a chromosomal disorder in which he does not contain the dormant Axiom Essentiae Ad Infinitum gene, and thus his hair is black instead of the traditional green. However, his wife, Aria Loajin, did have a version of this gene, as the Loajin family is an early branch family of the Essentiae.

As Aleph
As Project Aleph, the genetic code of Integer's Soul has been entirely transferred into Project Aleph's mechanical body. However, Project Aleph's mechanical body is not a physical Body, but rather a manifestation of the Soul of Vale, in the same way as a conjured item. This fusion of his Soul with Aleph's has left Integer's original Soul effectively NULL.