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.
Special Effect Failure: The wristcutting scene during Ruka's introduction features an obvious dummy arm with overly pink skin compared to Eihi Shiina's pale complexion. Thankfully, future movies by this director have perfected this effect.