here is the "magic" thing from strip game
nothing special
just hood on with some teal
sorry for poor quality as always

and if you are like "tired of this sexualized naked fantasy look"
1st - why are you here?
2nd - maybe in this magical world magic is all around and you absorb it through your body and the less clothes you have the stronger you are as a mage (mages in armor are much weaker)

3rd - and maybe amount of mana you have directly related to how strong/fit and tough you are

that explains every naked magical girl with perfect body you ever saw in your life!
Horniness has been retconned!