This fourth layer, on top of the enhancements, comes in the form of a thin web of touch sensors, applied over Alexandra’s entire encased body. Covering every single area, this web makes it possible to forward an increased sensitive artificial sense of touch to Alexandra, more focused and detailed than that of a human, all while still under the full control of Lumina.
Even when covered by the final layer of any shells, this web of touch sensors give Alexandra a superhuman sense of touch. She’s able to feel slight changes in air current and can even recognize if a spec of dust lands on her encased body. But all of those signals are under full control by Lumina and only available to Alexandra if her AI Mistress allows it.
Again, this layer is also encased in another layer of the smooth black latex solution, as the armour and third layer.