Per Spoilers Off rule, all spoilers in this page are left unmarked.
"A little gift from me to you. Dig in."
- In general, some of the mutations that Jungle Juice can give you can be seriously disturbing. Suchan was afraid of being labeled a freak for his wings, but he was positively lucky in comparison to less fortunate folk.
- The valedictorian in the graduation video had the entire head of a fly, plus its hairy arms and legs, as well as tiny vestigial wings in the place of hair. It's no wonder she was crying Tears of Joy when she got it removed.
- Among the civilians seen in the first look at the Nest, there's a giant millipede-human who can be seen towering over a six-story building in one shot, and taking up an entire section of the road in another. It's terrifying to think that if someone sprays the wrong bug, Jungle Juice can turn them into a kaiju!
- For the students that can be seen fighting during course registration, there's an extra whose got perhaps the most bug features out of any character, with their entire body basically being an arthropod plus a human head attached.
- While Suchan and Mihui are seeing a movie, Mihui has go to the bathroom after spilling her drink. Shortly after, a man enters the theater room shouting that everyone has to leave the building immediately, before getting impaled by a Praying Mantis-humannote , who is specifically hunting down Suchan so he can eat him. Suchan barely gets away, but then gets quickly caught up to and is only saved by Mihui, who had thrown her drink at the assailant. The Mantis responds by throwing Mihui out the window, which would have definitely killed her had Suchan not used his wings.
- Suchan hits an all-time low following the movie-theater incident (turns out he was completely right in thinking that exposing his wings would ruin his life), and makes an attempt to cut off his wings with a pair of scissors. While he ultimately can't go through with it, the attempt alone was enough to warrant a Self Harm-Warning for the chapter. Doubles as a Tear Jerker.
- Huijin confronts Jangjun Kim and his goons in order to get the rest of the class's IDs back, which he had stolen as part of his plan to get a Cinderella. While Huijin makes short work of the mooks, the tables quickly turn when Jangjun gets her into the water, as it turns out- he's a giant water bug. Huijin gets caught off guard, overpowered, and nearly drowns as he straight up attempts to murder her.
- What's just as bad is later on it's shown that he was actually ordered to kill Professor Ji's top student by a mysterious someone, who swiftly kills him for failing.
- It's worth noting that cockroaches can survive up to forty minutes without air, so it's unknown if drowning Huijin would have actually worked, which diminishes the Nightmare Fuel a bit.
- While Professor Ji's busy chasing around his class with a chainsaw as a first test (which itself would be terrifying if it wasn't hilarious), the mysterious woman has broken into the Nest, killed several security guards, and made it to where the Mantis-man is locked up. While she can't unlock the door with Jangjun's student ID, she can with the Professor's security pass which she got from a student... Who suddenly realizes that he doesn't know why he stole the security pass, why he helped her, or how he even got there. He's then offered to the released Mantis-man as a meal. (See page image) You can guess what happens next.
- Insect-Human Cannibalism later gets expanded upon in detail by a Tawny Earwig-human, who's surprised that a Dragonfly-human like Suchan has never "fed" before (which itself was in reaction to Suchan attacking the guy, after he had seemingly killed Huijin). It turns out that to predatory insect-humans, the act of consuming another insect-human is an overwhelmingly addictive experience, like "eating prime cuts of meat dipped in drugs." On top of that, eating other insect-humans makes one stronger over time, and the Earwig has done it to the point where he can No-Sell all of Suchan's attacks. And then Suchan's wings suddenly stopped moving because he overused his Complex, and at that point he would've been killed (and then eaten) had Huijin not saved him.
- While Huijin's backstory is mostly Tear Jerker, the reveal of how she became an insect-human is horrifying. Her Complex is that of a roach, and she got it when two classmates got petty-revenge on her, because earlier Huijin's brother (whom had just died) kicked one of the classmate's boyfriend (who was being a dick). So they had emptied a box filled with hundreds, if not thousands of cockroaches through her street curb-window.
- Huijin takes a hit aimed at Suchan, and gets a hole the size of her head torn through her torso for it. Cockroach or not, this kills her, and her body gets tossed side right in front of him. As a result, the balance between Suchan's survival instincts and reasoning utterly breaks, and his Complex takes over, putting him in a state where he's little more than an animal. The Tawny Earwig-human gets utterly curb-stomped despite his efforts, as Suchan breaks his pincers with his mouth, before biting the rest of the guy's arm off, piece by piece, until it's completely gone and he's barely able to speak. And then Suchan prepares to eat him, and would have done so had a mysterious someone not interrupted and knocked him unconscious. This was a good thing, because if Suchan had even swallowed one bite (everything that got his mouth when he was tearing the earwig-human's arm off was spat out), there would have been no going back.
- Later on we see Suchan accidentally swallows a piece of insect-human meat. Not even a large piece, but a small bit that got shoved into his mouth faster than he expected when he dropped his guard. He realizes what happened after his sense of smell gets so sharp that he can't help but start to think of them as being delicious despite being his friends. And while he tells himself he's under control, his body ends up trying to eat Huijin with everyone desperately trying to stop him.
- In Season 2, we find out that since then Suchan has moments where he blacks out and can't recall what he's been doing on top of having murderous hunger urges. Then one day he ends up next to the body of another student who's been killed and his hands are covered in blood...
- NEST itself comes off as this if you're not on their side. We even see them torture someone by intentionally giving them an antidote to a toxin so that they don't die while putting them through an extreme amount of pain.
