Read Oresama-Teacher. It's by the same author and basically a deranged mix between GSNK and... Angel Densetsu? Yup, an actually funny delinquent comedy. Featuring basically a less malicious Seo Yuzuki and evil Umetaro Nozaki expies.

Instead of a 4-Koma, the Manga features Shojo manga standard ~50 page chapters and it's completed too.

Maybe there's a big cringe moment in it, but even though I am far from finishing it, I wanna recommend it.

That's all.