"...we'll have to leave the investigation to the police..." makes me think that Ishida isn't about to raise his hand because he has a good heart; he just doesn't want to get in trouble with the police. Maybe that's a skewed look at that but it really just doesn't seem like Ishida does anything relatively nice until the ending and even then the wording is quite off. Those bullies were really really bad but Ishida was just as bad and it didn't seem like he got much bullying (at least not nearly as bad as Nishimiya had it).

I looked it up and there's an entire series that came out with this, I'd probably read it if Ishida was a girl but as it is I don't think I could watch it. I thought this was a cool OS though, nice that the romantic anything was shoved to the ending as to make it more human.
Anyways; this was a sweet OS but dang was the bullying... bullying.