It’s hard to find really true darkness. I’ve only experienced it in a professional dark room for photo class in high school, and once at a trip in the depths of slaughter canyon (which sounds way creeper than it is). Though my family insists it gets that dark around where we live Apparently I also have borderline freakish night vision, so I suppose that helps.
On slight tangent however,
Well if we’re talking anime, this pretty much grants you the ability to weild a 25 foot long buster sword. What wouldn’t be scared of that!?