Not gonna lie, this was a horrible arc. There were a few comedic and interesting moments here and there, but that's it. It wasn't entertaining at all, just a bunch of idiots running around and blaming either the teachers (especially Onizuka) or men in general. After the suspenseful previous arc with Teshigawara, this whole arc feels like a big pile of crap. Like seriously, Sho being one of those pathetic Angels? He tried killing himself numerous times, we saw him getting bullied and all, so how in the hell is he one of those retards?
(In chapter 188 I finally understood why he did these things)
Also, remember the Yakuza's kid? Me neither. He was in only like three separate scenes and then he disappeared like he wasn't important at all (Like a lot of characters are left unfinished, they just disappear), just like every other character, for instance, I remember Urumi hitting Onizuka with a chair and that's it. Where did she go?(Never mind, she might be working with her mom or something) Also actually there are not only negative things with this arc, but with the whole manga. Remember Anko's and Noboru's relationship? It was never mentioned after they came back to school from the trip, and that pisses me off.(literally in two chapters we see more of them, but still, there are other stuff that aren't mentioned ever again, like the giantess who should've hooked up with Kunio, but never did, she just disappeared) Honestly, I'm pretty disappointed with this manga. After the highly entertaining start, it feels like it's getting worse. Like the comedy is almost always top notch, but the writing feels worse with every arc (the writing is only bad at physics related parts and in this arc, I'd prefer if they fleshed out all of the characters, rather than add some more characters that aren't going to be important ever again). Like every arc ends the same way, Onizuka is being blamed, he almost gets fired, but then he beats the crap out of/saves someone, and gets to keep his job (not every arc ends this way, but it usually does and when it ends like this, it almost always feels unrealistic and annoying). Hopefully the last 30 or so chapters will change my mind for the better, since I've followed Onizuka's life since his Shonan days, and I would really like to enjoy this manga, like I enjoyed in the beginning.
Opinion of mine when I've finished the manga -
Mixed, the first half is 10/10, but then it got worse, a lot of characters' stories are left unexplained and they just disappeared.