Okaa-san said:

A girl shouldn't have their armpits or thighs showing in the thick of autumn

That's rich, coming from her.

Also, does the blade come from somewhere? Seems too specific a change.

Valentine322 said:

That's rich, coming from her.

Also, does the blade come from somewhere? Seems too specific a change.

People at pixiv are speculating that it's Cloud's Buster Sword. Or Triangle Head's big knife.

Yeah, that's the Great Knife from Silent Hill 2.

Tempted to add this to "You're The Last Person I want To Hear That From!" because Nemuno's outfit also exposes her armpits (and shoulder too).

Tagging Silent Hill and the great knife.