Board Thread:Questions and Answers/@comment-33603920-20190327134437/@comment-38954730-20190328181657

Sans is not in fact, the main character of Undertale, there isn't one. People tend to base fanfics around sans because of the genocide route and how they were impacted by it. In a lot of undertale animations, there are multiple sans, asgores, undynes, frisks, papyrus', toriels and alyphy's in one, specific animation. It all depends on what you believe.