History YMMV / IsItWrongToTryToPickUpGirlsInADungeon

** Even so, do not underestimate the {{Moe}} power of the strongest woman in the world. Aiz is definitely adorable, [[BadassAdorable and quite badass]].

** The rushed pacing of the original series' anime adaptation. On one hand, there are those who have been enjoying the show; particularly people who haven't read the light novels. On the other hand, detractors feel that the story is rough to follow due to the amount of detail[[note]]Which basically involves much of the elaborate world-building. A lot of viewers asked for spoilers just to know how the universe ''works''.[[/note]] being left out in order to rush through, and show off just the major events. The worst of the criticism occurred when it was shown in episode 9 that the 4th light novel was done in a '''single''' episode. Skipping out on some pretty big scenes, such as the God's meeting, and pretty much everything concerning Welf's backstory. Subsequent seasons are, generally, a bit less rushed, with Season 2 and Season 3 each adapting three novels apiece, as opposed to Season 1 adapting five. Season 2 does skip over adapting most of volume eight, however.

* MagnificentBastard: The [[ArcVillain Moss Huge]] is a Dungeon monster classed as an Enhanced Species, due to displaying an [[ItCanThink uncannily high level of intelligence]]. It began hunting and killing adventurers, outwitting its prey with traps and trickery, in order to acquire their stashes of magic stones. The Moss Huge first encounters Hestia Familia, just after laying waste to a previous party. Hestia Familia also struggle against the monster, with Bell unable to find and opening to attack. It then bombards the heroes with its Leech seed attack, managing to hit Chigusa, where it [[BatmanGambit retreats knowing the adventurers have no choice but to pursue it]]. Setting a trap involving a decoy of itself standing over two survivors, the Moss Huge waits for the heavy hitters to charge, where it then ambushes the weaker/injured party members at the back. Recognizing Bell Chanel as a threat due to his Firebolt magic, Moss Huge grapples Bell with a vine and sends him down a waterfall to a lower floor. The Moss Huge then unleashed a "pass parade" by aggroing mobs of monsters and sending them to surround Hestia familia. While the heroes struggle in killing the monsters, the Moss Huge devours the magic stones dropped in battle. The Moss Huge also overcomes its [[WeakToFire weakness to fire]] by wrapping itself in fire-resistant Undine Cloth that it stole from adventurers. Outsmarting every adventurer it comes across, the Moss Huge cements itself as one of the deadliest threats of the Dungeon due to its sheer cunning.

* EvilIsSexy:
** Freya, the Goddess of Beauty, and perhaps the closest thing this series has to a main villain so far.
** Ishtar, even more so than Freya (evil-wise). She and her Familia are involved in a lot of unsavory activities including human (and demi-human) trafficking, forced prostitution and [[spoiler:human sacrifice]]

** Despite being Bell’s primary love interest, Aiz has progressively become a target of ire for fans of the series as it went on due her lack of involvement in the ongoing events outside of the Sword Oratoria spinoff with many wondering why Bell likes her so much when there are several other better choices among his harem. Her somewhat emotionless portrayal didn’t help with these sentiments.

* AntiClimaxBoss: The final duel of the Hestia vs. Apollo Familia war between Bell and Hyakinthos is quite lackluster in the anime due to mediocre animation. It's also rather short.

* AntiClimaxBoss: The final duel of the Hestia vs. Apollo Familia war between Bell and Hyakinthos is quite lackluster in the anime due to mediocre animation. It's also quite short.

** When it was announced that a What-If scenario was in the works diverging off the Calamity Arc where Bell hooks up with Ryuu instead of continuing his pursuit of Aiz, people were initially excited about the idea. But when it came out, it reveals that not only would Bell lose the benefits of having Liaris Freese, but that the world would be destroyed by the One Eyed Black Dragon with nobody around strong enough to fight it. This of course rubbed not only fans of (=BellXRyuu=) the wrong way, which is a very popular ship within the fandom, but fans of most other Bell ships that aren’t with Aiz as it gave them the impression that their favorite ships actually can’t happen or else they would break the plot.

** When it was announced that a What-If scenario was in the works diverging off the Calamity Arc where Bell hooks up with Ryuu instead of continuing his pursuit of Aiz, people were initially excited about the idea. But when it came out, it reveals that not only would Bell lose the benefits of having Liaris Freese, but that the world would be destroyed by the One Eyed Black Dragon with nobody around strong enough to fight it. This of course rubbed not only fans of BellXRyuu the wrong way, which is a very popular ship within the fandom, but fans of most other Bell ships that aren’t with Aiz as it shows them that their favorite ships actually can’t happen or else they would break the plot.

** Despite being Bell’s primary love interest, Aiz has progressively become a target of ire from fans of the series due her lack of involvement in the ongoing events outside of the Sword Oratoria spinoff. Her somewhat emotionless portrayal in the anime adaptation didn’t help with these sentiments.