Jolstus before the first events of DTS. Originally was but a mere child raised by only his mother, not knowing that he was actually conceived by The Creator and her. She always thought he was special due to his exotic eye color, turns out she was right.

Through the first episode when he is now an adult, he loses multiple limbs and is taken in by the D.T.S, permanently fused to most his armor.

Jolstus’s K-27 suit now has a built in mind transfer device called AMU-T which stands for
|Artificial Mind Uploading – TempOS|

If Jolstus were to ever be incapacitated or knocked unconscious, an automatic process alerts Tempus, where he is able to wirelessly upload his programming into Jolstus’s suit, letting him pilot it separately, and can even use Jolstus’s Essence sword assuming Jolstus is conscious.

Tl;dr – Basically Tempus is turned into a mech suit that pilots itself.

Its the man himself