Hum... So I guess this lass was a Type Three during their organic life, but has lost much of their memory of that period now that they are Type Four? Presumably due to the new mechanical body lacking physical memory/being poorly maintained?... Judging by the original name and age, I'm guessing they were originally Nepleslian (or just plain old human), too?...
Sorry for butting in, but Type Fours are normally quite rare!
This is quite well written overall, so I'm here to give it a lore pass preemptively, anyway. Definitely checks all the boxes for both the abilities and woes of a Four. Approval now just depends on if Piney wants a character with such big holes in their past like that. ;I