Fan CastingUndertale Yellow Anime

As explained in Undertale, many years ago, war broke out between humans and monsters. Humans won and sealed monsters inside the Underground with a magic barrier that could only be broken with seven human SOULs. Undertale Yellow follows the journey of the seventh human that falls into the Underground, and the sixth SOUL to be collected by Asgore. This human is a child named Clover. Undertale Yellow begins an ambiguous amount of years after the war, after five human SOULs have been captured and not long after the experiments that led to the creation of the Amalgamates. Clover heads up the mountain to investigate the disappearance of the five humans. They deliberately jump into the Underground. There, they quickly end up off the path seen in Undertale and team up with Flowey, who tells them the previous humans had been killed by Asgore. Flowey SAVEs for Clover as they explore new locations in the Underground and decide who to kill or spare in pursuit of justice for the previous humans.