It's a premise that only works with a R-18 novel, or maybe an ecchi manga. The only value this story has is fanservice and flirting, but there's no art for the fanservice and the flirting is super awkward.

Setting? There are things that show the author hasn't put too much thought into it. In the first chapter he mentions that only very smart and fit people with a variety of skills can get into dungeon hunting corporations because dungeons are like warzones (and only smart people get sent to warzones, yup).

Character?... more>> Protagonist is your classic Japanese young virg*n male. First heroine is your classic top class beauty tsundere who blushes from being called cute.

Action? Heroine seems capable of destroying dungeons from the entrance, though I doubt the author realized it, but even ignoring that, it's hard to expect much actual combat description. The usual "one-shot everything until the author wants a power-up scene, struggling for a paragraph, power up scene (flirting in this case I guess), continue one-shotting everything".

Story? A bit too early to judge since everything so far really just amounts to prologue and tutorial with a promise of more tutorial to come.

All of these aspects of the novel are in a word... generic. Not a bad thing in and of itself, and I'd normally rate it a 2/5 and make a note to read a manga version or better yet, watch an anime of it... but the protagonist is exceptionally dull and uninteresting to the point of being obnoxious about it so the novel gets a 1/5 and a note to skip said versions. <<less