Lotta detail on backgrounds that double& tripled the absurdity. From teachers drawing evolution (the heck predators and Is it saiya-jin from Dragon ball), the panda mangaka & parenting books on shang feng desk, girl classmate who (always) ate bread, that male classmate that had chobits (moe) ears, the yankee hairstyle, digimon evolution that change nanhao and his desk, and that fujoshi girl.
I love this manhua.