I found an arrow the other day when playing the game. it doesn't list any properties, but I can equip it as a weapon. When I do so, Kurage goes invisible as long as he's standing still, but bad guys can still see her. By invisible, I mean she disappears from the screen.

I can attack with it, but it acts like my fists.

Any idea what use this is, if any?

"I've never been a lover, I've always been a fighter. It's high time I fight for love instead of the usual crap reasons I fight for, like my own pride" -- A wise guy