Actually, my fav char is Shino, too. That's great!
Not gonna lie, every single character is so unique and loveable for their own reasons. The story is amazing, and it's unbelievable that their is the option to download for free. The prolog already feels like an almost finished product with the amount of detail and effort. I got to day 110 as I was having a total blast getting to know the characters and get all the upgrades and Fanart & Standard. The only issue I've noticed is very very few dialog issues, for example one time when it refers to the girls it says "Hey instead of her" when it's describing the person. even then it's so unnoticeable it doesn't take away from the story.
As for characters that should see more time everyone, even Jimmy and Granny. All the characters are so well thought-out that no seeing a certain one would be sad. Especially in group scenes, honestly well done on the Art Style especially the characters, and just the game in general. I was playing Scarlett Law, a similarly styled game when it showed this in the related bunch. Started playing, and it was slow at first, but the more and more I played I was taken aback by how amazing the characters, funny the jokes, and just how phenomenal and entertaining this game ended up being, definitely my favourite game and I can not wait to see what's in store!