This is pretty clever actually.

Clever? I get the sword but the spear? Panties weapon is a gun.

Remi uses Gungnir, a thrown spear, thus the gun analogy, which always hits its mark and always kills (according to norse mythology).

would Flan's wing be considered 'convenient_censoring'?

It's see-through so not really.

It's almost a shame that the sword isn't in the usual leaf-shaped polearm-like configuration artists conventionally use for laevatein. Which is probably why the picture isn't tagged that way even though it has Flandre holding a sword...

In fact, I actually wonder why that is, now. I mean, if Panty's gun can be reconfigured to Gungnir...

I'd totally rewatch the entire series if the characters became Remi and Flan.