Another one of the demons that work under the Witch of the Fifth Dimension, to whom, is now named Cinquelle (thanks to Okashii for the name).Shougeki No.16 is an interesting demon where in, she isn't a demon at all. Shougeki is more of an Talos (basically an android) than she is a demon. Normally, Talos only exist in the mortal world and not the Jigokusekai, however Talos like Shougeki are different whereas they were sent into the Jigokusekai long ago and, eventually, were forgotten there after the humans realized they had no way of pulling them back out to the mortal world. After essentially being abandoned in hell, the Talos made a living for themselves in their new home, Shougeki included.
Shougeki's power lies mostly in machinery and electromagnetism wherein, she is able to bring out mechanical weapons from any part of her body as well as use devastatingly powerful electrical attacks. As far as her alliance with Cinquelle goes, Shougeki oversees the Etheral Electrozone area, which is basically a power plant that functions to provide fuel to Cinquelle's vast inter-dimensional estate as well as produce various resources needed to open a large enough gate to other dimensions. The cable tail she sports acts as a way to absorb electricity into her body and use it to enhance her capabilities, the cable is able to steal from organic opponents but, it won't get as much of a charge out of that individual as it would have say, an outlet or a machine.
Interestingly enough, Shougeki's breasts are actually a pair bombs that can (and will) explode when Shougeki activates her self destruct sequence. No one knows why, but when the self destruct sequence is active, the bombs seem to...expand until they hit critical mass and finally detonate, taking out everything, living or not, in a 8 mile radius.
Art wise: Her left hand looks fucked up :C