These are what we call the 'YMMV items.' Things that some people find in this work. We call them 'your mileage might vary' because not everyone sees these things in the same way. This starts discussions in the trope lists, a thing we don't want. Please use the discussion page if you'd like to discuss any of these items.
YMMV: Teito Monogatari
Nightmare Fuel:The OVA has so many scenes of this, we can consider all the trippy scenes involving Kato's spells as this. And then there's the big slug creature and all the raping.
Squick: Despite the original novel and first live action adaptation being pretty light on horror, the OVA adaptation Doomed Megalopolis is renowned for pushing its gross-out content to the limit: A big slug-like creature with a phallus shaped head vomited by the female lead, a nurse turning into a hideous bug monster, rape serving as a major story arc, etc.