Nightmare Fuel / Magical Girl Site

• The Admins of the Magical Girl Site. They have monster strength and abilities, and settle pretty well on the Uncanny Valley with their unnerving, unmoving faces and the deliberate art difference between them and everyone else in the world- they look more like the kind of thing you'd find in a Yume Nikki fangame than a magical girl series. Even the Incubators weren't this frightening.
  • What makes it even creepier is that, at the beginning of the manga, Yatsumura talks about how she has been unable to find the "real site admins" or trace the origin of the Site, implying that there is an actual human being behind the Site. Over the next few chapters, however, it becomes quite clear that the Site Admins aren't just virtual avatars. They are real and very much able to appear in the physical world. When you take into the fact that the Admins seek out broken, desperate girls to manipulate into starting an apocalypse, how they can find the girls that they make into Mahou Shoujos, and the fact that the Mahou Shoujo Site isn't an existing website unless you have a stick, it begs the very disturbing question of what exactly the Admins really are.
  • The Admins' attitude towards the girls they make into Mahou Shoujo's is rather disturbing, as well. They act as if the girls are objects that they can use and they will murder the girls who won't play their sick game without a second thought. As Aya herself says a few chapters in, the Magical Girls were given their powers because they were so unfortunate, but they didn't get them because the Admins wanted to better their lives or make them happier.
• The whole Mahou Shoujo system in this series is so dark, disturbing, and utterly exploitative that it makes the systems of Puella Magi Madoka Magica and Magical Girl Raising Project seem tame by comparison. The Admins purposely seek out girls who are already traumatized and mentally disturbed, give them a magical stick, and tell them to basically go crazy and let out their anger over their misfortune through violence. Said sticks also happen to eat away at their user's life span until they eventually use it up and die. And then there's the truth about The Tempest. The Admins are basically using the Mahou Shoujos as cattle in order to bring an end to the world. The death, pain, and despair that are caused by the Mahou Shoujo's are absorbed by their sticks, which collect all the negative energy to use to power the Tempest. That's right; the Admins are literally turning traumatized and abused young girls into murderers and violent abusers themselves in order to create enough pain and suffering to end the world. Say what you will about Kyubey and Pythie Frederica, but at least they had a noble goal; to save the world/Magical Kingdom. The Admins have no such excuse, making them, objectively, worse than Kyubey, one of the most hated characters in anime.
  • This makes Sarina becoming a Mahou Shoujo even more disturbing in hindsight. While she totally deserved all her suffering and brought it all upon herself, her misfortune was caused by Mahou Shoujo's killing her best friend and slitting her throat. In the manga, she also discovers that Shoi's latest borrowed appearance is that of her own older sister. After all this, the Admin Nana shows up and exploits her hate and misery to get her to become a magical girl. That's right; the system that creates magical girls out of suffering girls uses them to spread suffering to other girls, who they then opportunistically make into Mahou Shoujo's, as well, which gives off some disturbing implications. It also makes Sarina's apparent murder by Nana even more cruel; the Admin used her suffering to manipulate her and then killed her without any remorse whatsoever when she realized that she was being used.
• If the exploitation of the Admins wasn't enough, they enlist a girl to become "The Magical Hunter" and murder the other girls for their sticks. They do this by flat-out lying to the chosen girl and making her believe that she will be able to survive the coming apocalypse if she kills enough people and gather's enough sticks. In reality, they are only using the girl and she is almost certain to die anyway because the constant use of magical sticks will kill her before the apocalypse even comes. When The Hunter is put of commission, the Admin simply just pick another girl. If a girl ends up getting wise to the Admin's lies like Sarina, then they simply kill her.
• In the very first chapter, Aya first is abused by her older brother (and the only thing she can do is to plead him to stop) and later is nearly raped because a gang of schoolgirls who bully her ever since Aya came to school, invited one guy to "have a go with Aya". It doesn't end well for them.
  • Kaname in general inspires this, especially after he obtains Nijimi's Stick. After encountering Keisuke for the third time, he gives a horrifying demonstration of the mind controlling powers by first talking Keisuke down and then telling him to kill himself. And then Aya spots him on the beach after her Beach Episode, tries not to catch his attention, but gets it anyway, leading the reader to think that he might try his powers on Aya, too.
• Yatsumura's Cold-Blooded Torture of the man who killed her family. She straight up admits to him that she won't kill him or let him die on his own terms—rather, she'd torture him slowly, but by bit, until he finally gives out. It can be argued that his eventual death was a Mercy Kill, given what he'd been through.
• Tsurara, the protagonist of the spin-off Mahou Shoujo Site Sept, was given a laser gun in the form of a drill. The laser it fires warps and twists its target until it explodes. She uses the gun on her coach, who'd been regularly raping her and gotten her pregnant, in self-defense. The laser twists his head until it looks like something straight out of the manga made by Junji Ito, until it explodes in a geyser of blood.
• Nijimi's panties ending up in the hands of none other than Aya and Kaname's father! If there's anything more terrifying than Kaname using them, it's the guy whose abuse of Kaname turned him into the sociopathic monster he is today now using them.
  • This later gets combined with dark humor as the repeated use of the panties soon makes him bleed out of his anus. At first it is a small drip but more usage soon turns it into a fountain of blood spraying from his ass. Makes you wonder what would have happened if Nijimi over used them.
• The King awakens and decides to start the Tempest up earlier than planned. What follows is a massive blackout on a planetary scale, complete with multiple airplanes dropping out of the sky and crashing into buildings since there's no power. Next up, every single human who hasn't used a Stick is converted into a giant sperm and drawn into an orb of energy created by the King. Ridiculous at first, until Aya and the rest are forced to watch as their family members (Kiyoharu's mom, Kosame's family, Sarina's sister, Mrs. Asagiri) are transformed against their will and torn away to join everyone else. And absolutely none of them have any real idea what's going on or what this is supposed to mean.
• Remember all those Magical Girls that were running around in the background while Aya and the main girls did their thing? Like Hiroko Shimozono and the girls Kayo and Sakaki met, as well as Nanoka from the Sept prologue? While Nana was explaining to the main characters the truth behind the Mahou Shoujo Site and what the King's plans are, the other Admins brutally slaughtered every last Magical Girl in rather horrifying, painful ways before they could get together and help Aya's group.