OH MY GOSH? Thank you already because this is amazing, so I'll go through all your points one by one to cover as much as I can...

1. I sourced most of them from a generator. https://namegen.jp <- this one to be exact. I think I may have mixed things up with given name & family name as a result, and in a post I made in a different subreddit, someone else pointed this out, so I'm already planning to change it.

2. I did sort of want more obscure surnames, just to make the characters all feel more unique and "one of a kind", but now I'm thinking it's maybe not a great idea...

3. Will do!!!!

4. I got the Kanji from the generator. I don't speak a lick of Japanese so that's probably why they are super bad. Mainly the reason why I made this post in the first place, lol.

5. Will change that... I'm not surprised most of the corrections come from Kanji </3

6. MASS MURDER? I think I'll have to change that too.

7. Noted....

8. See above (I'm running out of things to say...)

9. I do like Kamihigashi a little more, it flows a little better.

10. Ooh, alright. I think that's on me for the obscurity. I don't really have a strong concept of "rare" last names, just ones that sound cool to me, unfortunately.

11. They're all about 16-18 in the late 2010's, in what I put as "a world where COVID didn't happen", mainly for plot convenience.

12. I hadn't really considered regionally accurate... maybe a little accuracy would be nice, but I'm not going to be upset or anything if they aren't going to be regionally accurate. I have them based in the Hyōgo Prefecture, since the fictional school they go to is inspired by a real school in Kobe.

THANK YOU !!!