You got a lesbian girl who's actively sabotaging the main couple's relationship even though it's clear she's in a happy relationship and most likely not even bisexual. Not enough? She'll probably fall in love with a lesbian teacher, woo! /s

There's an adult teacher messing around with a teenager and falling in love as if that's totally normal. Two adults also know this and think it's totally fine.

Then recently they actually put a middle schooler in a relationship with a goddamn 4th grader. Surprise, everyone thinks it's great! I don't know about everyone else, but if I was in the 4th grade and some middle/high school kid went out with a classmate I'd think they were really creepy. If I was the older kid's classmate I'd think he was a pedo. Doesn't matter how much the author tries to dress up how "mature" the kid is or how "childish" the older boy is. It's creepy as hell.

Oh, right, there's also a background student that's in love with another teacher, but at least that teacher is probably not a pedo.