…schoolmate they made fun of

I’m sorry, my memory is incredibly fuzzy about this movie. It’s an animated movie with the art style of Mr. Meaty or Fanboy and Chumchum. It was from a bootleg DVD collection that came with two discs, both in a case that was orange with a flap opening it. The cover had the live-action garfield on it and the other had some other movie. of a whole bunch of movies which I sadly cannot find. This movie was not in English and had subtitles. It followed two boys talking and stuff and a fat girl. The fat girl dies and the rest is just so blurry. it was really disturbing and caused me numerous nightmares as a kid. I’m trying really hard to remember the rest of the movie.