Quote Originally Posted by DEX
This also means that when Shun's brother killed the white spider, she probably DID actually die, but it doesn't matter, cause she's immortal(which, I assume means she regenerates, because it clearly doesn't make her invincible).
The white spider looked like a less evolved version than what she's currently now - so whatever it was (I doubt it's Kumoko), it wasn't an immortal spider.

And yeah, with what we're shown here, looks like Demon Lord is someone else.