Damn the c/c in this manga is hardcore. Do this at school you won't get good grades, and people wonder why it have bad grades. Go real Solo Leveling if you don't understand why the rating is low. Still reading it cause there almost nothing to read i like
There is a lot of similarities, heck, the name alone, Level up Alone compared to Solo Leveling/Only I Level Up.
But it is still different. Guns are still effective, the powerup is not just combat related and generally the world seems more grounded. It still has the gamelike elements, but there isn't the loot drops.
I prefer the feel of this, but yeah, definitely has taken inspiration.