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.
Ensemble Darkhorse: Chieko. She's the least connected to the main plot, but critics were talking about Rinko Kikuchi's Oscar chances the instant the movie came out.
Tear Jerker: This pretty much goes hand-in-hand with Oscar Bait movies. The exceptionally sad scenes all involve the deaf Japanese girl struggling with coming of age and her maturing sexuality.