Special mention goes to the Undertale: Underschool series for being particularly slimy as every part belongs to the same story, Underschool: Fallen Childand all those volumes are merely a couple chapters slammed together.
In the beginning, we were nothing. The world was dull, hollow and hopelessly blunt. Our place of birth was but a distant thought, our purpose still undefined. It was a dark time, of which we rarely speak of.