Welcome, It's the First Time With This Kind of Villainess
The Blade of Evolution-Walking Alone in the Dungeon
Yes, this is similar to Solo Leveling (I specifically found it while looking for a webtoon similar to Solo Leveling). However, we should probably take a look at the story itself and it is... not that good. The pacing is horrible--we know nothing about the main character besides he's a healer, he's weak, and people won't take him on dungeon raids before they drop us in the middle of the story. We have no clue who his "friends" are supposed to be, which would be fine, except the story focuses on them while giving us only occasional glimpses of the main character. I understand they're just canon fodder, but where in the world was the set up for this story? I know nothing about it but I'm already deep in a plotline that I know nothing about. I couldn't get too far into this story. The art is pretty damn good, though.
Resetting Lady