Nightmare Fuel / Paragons of Virtue and Glory

• The very existence of the Grimm as supernatural creatures whose only goal is to kill as many humans as they can is this, and since they are apparently the dominant species of Remant, it makes class 1-A wonder how common it is in settlements outside of the megacities that make up the kingdoms of Remmant such as the village of Gale are decimated by populations of Grimm creatures.
• Koda's Quirk actually lets him understand the Grimm calling out for their deaths, causing him to accept Aura largely out of fear of them. Even the birds he talks to shortly after arriving in Remnant know how bad the Grimm are, outright calling them "death".
• There's more and more evidence that Remnant and Earth are Mutually Fictional piling up, and Aizawa is worried that it might cause a crisis if the students realize the full extent of it.
• The crooks that Matches, Ojiro, and Sun run into are fully willing to kill them, and say that they're going to throw the lost dog the students were trying to return into a dog fight, where the puppy will likely be slaughtered just to twist the knife further.
• It's implied that Emerald and Mercury have dark designs for the spray that makes one immune to Mineta's Quirk.
• Aoyama awakens his Semblance... which turns out to be a Superpowered Evil Side that transforms his Quirk so that anyone hit by it will become a "negative" version of themselves - when Nora gets hit, she wrecks Ren's arm.

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