The first thing that I want to say is that this movie is amazing. It's filmed from the view of people who aren't completely sane. The two characters went through complete horror, but their innocence remained. The movie is filmed in a way that show childlike innocence that clashes against their brutal pasts. I can't say much about the story, because it would give away important plot points. The movie has intricate details put into it that seem random, but actually cause you to become relatable to the people that show up on screen. Shota acts amazing in this, getting deeply into the character and showing real emotions that pull you into the story.
Sometimes the story become unreal, there's two scenes which I don't know if there's really happen or just Mii-kun imagination. The story kind of slow, but I like how the truth built and unraveled. But! It's really itchy how they don't tell Mii-kun's real name until the end of the movie XD