Ogata-sensei
I've read up to volume 5 of the manga, and watched everything available from Netflix, and there's something about the anime that's been puzzling me:
Why does Ogata-sensei (the friend of the Toya's with the glasses) have a creepy-stalker back ground music? I mean, if I saw someone hanging around with that background music I wouldn't let kids be alone him.
I don't even see how it fits him. His basic deal is that he knows Akira and knows of Hikaru, and knows that there's a mysterious quasi-rivalry.