Is that a bullet trap?!

I mean if you think about it is not that surprising that T-Dolls have that, they are even more machine like than shipgirls.

NonShinyDude said:

they are even more machine like than shipgirls.

They are machines

Also, modular system

some are machines some blur the lines... M4A1 for example has exactly no certainty she's either a cyborg, or a biological human who just happens to be good with guns... or a CLONE BABY (ultimate coordinator)

Algester said:

some are machines some blur the lines... M4A1 for example has exactly no certainty she's either a cyborg, or a biological human who just happens to be good with guns... or a CLONE BABY (ultimate coordinator)

Or she was a human who get her mind uploaded into a T-Doll body for yet to be explained reasons