History NightmareFuel / SoImASpiderSoWhat

* [[JerkassGods D]] is a pretty terrifying in her own right. When everyone aside from [[NinjaMaid Meido]] are downright afraid of her as D plays with everyone's lives without regard [[ItAmusedMe just for her own entertainment]] and have screwed over the lives Oka & Shiraori amongst the reincarnations and [[GodIsGood Sariel]] & [[TheDitherer Gyurie]] amongst the natives of the planet.

** Her brief time outside the labyrinth at first only further shows this when she saves a carriage from bandits, brutally tearing the group to shreds within seconds while the anime drops all pretenses of hiding her form by outright showing her as the humans see her: an incomprehensible demonic spider with scythes for arms that can kill just by looking at you. The MoodWhiplash from jumping ''back'' to her cutesy Kumoko form on-screen shows we're only seeing her as cute because of her own perspective filtering the story.

** Said skill is terrifying in its own right, as it needs RequiredSecondaryPowers - immortality doesn't equal healing from your injuries automatically, meaning someone could tear you to shreds and do whatever with the pieces [[AndIMustScream with full cognizant awareness of what's happening to you.]] Without some means to heal back from the point of body failure, you're [[FateWorseThanDeath stuck that way.]]

** Episode 14 highlights this when she saves a carriage from bandits, brutally tearing the group to shreds within seconds, while dropping all pretenses of hiding her form by outright showing her as the humans see her: an incomprehensible demonic spider with scythes for arms and near-instant killing potential. The MoodWhiplash from jumping ''back'' to her cutesy Kumoko form on-screen shows the story is effectively putting only her speaking and thoughts through a filter of her own perception.
* You never thought that Kumoko's SanitySlippage could be hilarious, horrific and tearjerking at the same time.

* Even when thrown into a situation where she should be dead to rights, Kumoko barely manages to come out on top time and time again, no matter how maimed she gets in the process. Then Ariel shows up and instantaneously ''[[LudicrousGibs gibs Kumoko into bits.]]'' The only reason she even manages to survive is thanks to gaining the Immortality skill.

* You never thought that Kumoko's SanitySlippage could be hilarious, horrific and tearjerking at the same time.

* The Nightmare of the Labyrinth, aka Kumoko from the human perspective, is also nightmare fuel enough to terrify the people that encounter it. The moment anyone encounters it, mass slaughter ensues, and even the strongest of humanity practically crap themselves when it shows up to the point that Julius, a ''Hero'', got PTSD from his fight with it. The anime plays it up even further, highlighting just how creepy it is as it appraises and then tears down its foes within seconds.

* The Nightmare of the Labyrinth, aka [[spoiler:Kumoko from the human perspective]], is also nightmare fuel enough to terrify the people that encounter it. The moment anyone encounters it, mass slaughter ensues, and even the strongest of humanity practically crap themselves when it shows up to the point that Julius, a ''Hero'', got PTSD from his fight with it. The anime plays it up even further, highlighting just how creepy it is as it appraises and then tears down its foes within seconds.

** Kumoko's plight in the labyrinth is filled with not only high-stakes battles for survival against some rather terrifying monsters, but also the nasty sordid details of being an ExtremeOmnivore that constantly has to eat to survive. The anime in particular highlights this multiple times by showing her mid-meal chow, ripping pieces of flesh off of her victims in full view and with gored shots of the remains. And while she eventually does end up eating people in both the web and light novels, the web version points out that they ''tasted yummy'' from her narration.

* You never thought that Kumoko's SanitySlippage could be hilarious, horrific and tearjerking at the same time.
* An adventurer party comes down to the dungeon and encounters a monster spider that completely kicks them to the curb and that spider is Kumoko. That's right, the cutesy cartoonish look she always had was just from her lens but from other's perspectives, she's straight-up horrific.

* Kumoko's situation at the start. Unlike her classmates, she got reincarnated as a spider creature and is forced to survive in a massive dungeon filled with the brim of nasty creatures who all want to eat her.

* Never before has Kumoko's SanitySlippage be hilarious, horrific and tearjerking at the same time.

* All this time we've been watching Kumoko's journey from her lens. However once we see other's point-of-view, instead of the cute look she had, Kumoko's real appearance is just that, a spider and a real scary one might add.

* All this time we've been watching Kumoko's journey from her lens but from any other point of view, she's actually a deadly force not be reckond with.