i would have given it an easy 10. really loved the anime. this movie is worth watching for anyone who calls themselves an anime viewer, if you still havent watched it yet then what the heck are you doing with your life, seriously?
it has great character development, it took a different approach to the mc, who is a bully and not the bullied. people tend to sympathize with the bullied one but not in this anime. you will be on a journey, understanding the point of view of bully, when he had conflicts with his inner self. the one who lost all his confidence how he becomes the new bullied and how it leads to the future events in his life.
Anime does not have any supernatural phenomenon in it which is good. it is more of a realistic approach
once you start watching and in it for more than 10 minutes, you just wont be able to leave this roller-coster.
the voice artists have done really good job on the dub part as well i've watched this both in dub and sub( first time was dub)
has got good art-style to it
just go watch it already, wont be disappointed