In a world on Earth where humans live all over, in underground Cities, Underwater bases even Lava tolenrant Metal covering a base maybe in a volcano.
In New York Two groups have been discovered by the names of Order of Cog aswell as Metal of Unity. There Purpuses where unknown until the First VXCC was discovered.
VXCC being a large mech like structure however with its own quantum brain system to allow it free thinking. The First VXCC was largly known as ' the Father ' by everyone as it was the father of a new age.
the Father hade a human companion decided randomly to a newly brithed baby, As this Child hits the age of 12 it will hear the sounds of Cogs grinding and pistons doing there thing in there mind.
This meaning that they are soon at the age of 16, the Cog mind sound is basicly a noticer to the VXCC that there Companion is soon ready to be discovered.
The Companion once 16 begin to feel increased inteligence and strenght, not by much but at a noticable scale.
Not soon after this the VXCC will likely find his companion, the Companion not sure what the fuck the VXCC is will most likely freak out at the notice of a 10m high robot in there face.

This RP is an idea that i got.
Free thinking mech with a Human companion.