@Wolvenworks
I don't read the raws, so here are what we know from the translated novel.
Here's some more spoilery details.
If you don't want the details, go to the end.
So, here's my guess.
@feha Rather than the geeks leaving to give the others a wake up call, I feel like it's more likely that they had enough and simply decided to leave the others behind.
I mean, the gals and the delinquents are likely to have been lazy and to have ordered the geeks around.
Heck, those useless...
Here is a warning.
While reading this chapter, I was suddenly attacked by ninjas!
Those damned sneaky guys started cutting onions right beside me!
So beware of your surrending while reading this chapter.
They can be anywhere.
@Enceeee
She is a young genius.
She has her entire life in front of her and she will probably do somehting important.
We don't and we won't.
We can waste our time since we have already waasted our life.
I see...
So she is the True Hero that will save the world.
And as Japanese Hero tropes ask, she will get a harem.
And the World that was saved will be her harem.
Kneel before the True Hero.
Hail the True Hero.