Story

A fan-made alternate universe based on the game Undertale by Toby Fox. The Successors AU follows the story of an alternate version of Frisk the human who ends up getting involved in Flowey’s, from the original timeline, attempt to bring back his diseased sibling. The six human souls he had absorbed had dispersed from his body, however small fragments of them remained inside of him. Flowey refused Frisk (original) who tried to convince him to become part of their family, with the remaining soul fragments inside of  him had given him the ability to feel emotions, feel like himself, to an extent, again, the loss of his sibling had finally hit him after all these years, and without Chara, he didn’t feel whole. Flowey promises Frisk, Toriel, and Asgore that he will return once he finds Chara as he believes his deceased sibling’s soul still lingers somewhere. His search has led him to many alternate universe and timelines, but occurring conflicts in the multiverse had influenced and corrupted Flowey. His original goal had become lost and he started to target small AUs not involved in the conflicts in an attempt to mislead monsters and humans alike, for what reason? No one knows, but it is believed that the major cause of it is that the fragmented souls within him were corrupted overtime as he traversed through different AUs and The Anti-Void, causing him to revert back to his former self. The fragmented souls made him powerful, mainly due to INFLUENCE. Flowey stumbles upon The Rim, a small slither of the Anti-Void that had extended into The Void. It is where the excess souls end up in during creations of new AUs. Incomplete alternative souls roam The Rim, and to his luck, Flowey’s travel in it leads him to a near complete AU - The Successors AU. It is a magic-less world, similar to the real world, where the inhabitants mainly relied on technology. Due to the AU being incomplete, its inhabitants only have partial souls, just like Flowey, it was also the reason why this AU did not have magic, their souls were incomplete.

In this AU, Flowey finds a young Chara in the Ruins and uses his INFLUENCE to corrupt the young kid. Frisk, in an attempt to save Chara, plucks a petal from Flowey before he was able to leave with Chara into the surface world. Left with just a small petal in hand, Frisk is approached by a mysterious person who she has never met before and was handed a golden heart locket. She was instructed to seal the petal within the locket in order to prevent Flowey’s INFLUENCE on Frisk. Years later, the same mysterious person approaches Frisk and encourages her to climb out of the Underground and find Chara, who, with the INFLUENCE of Flowey had started using magic that was not ‘coded’ into their AU. The foreign magic could break their incomplete world and prevent it from ever being created, and their AU will only ever exist as an error in The Rim, and never to enter the Anti-Void. Frisk, determined to save her world, she struggles her way out of the Underground before being found by Sans, a student of Doctor Alphys, who had set out to find a cause to the changes in their world. His curiosity leads Frisk to the city of Monsters where she reunites with Chara who had now become the son of the Monster kind leaders, Toriel and Asgore, as well as the brother to Sans, Asriel and Papyrus. Flowey is nowhere to be found, and Chara states that he will transform and complete this AU where it could then be ejected into the Anti-Void, being recognized as a true AU.

Frisk, with the goal to stop Chara, ensures their world does not get destroyed by ripping out Chara’s soul along with the INFLUENCE Flowey has left on him and seals it within the heart locket. This leads to Chara’s death. It does not end there, however, as for years even before the meeting of Flowey and Chara, Flowey had purposefully left his petals to Sans, Asriel and Papyrus in order to spread INFLUENCE. He also gave one to the former Royal Scientist, Doctor Gaster, who used the petal to speed up the process of AU creation, but backfired and caused him to be casted out into The Void. Another petal was given to Chara upon their meeting, and the final petal was plucked out by Frisk. With the help of INFLUENCE, their souls became complete and as the last requirement for the AU creation in The Rim their AU is created and ejected into the Undertale Multiverse but this causes a CRASH due to conflicting codes within the AU and as the AU exits The Rim it also destroys the fine line that connects it to The Anti-Void, rendering it inaccessible. The Successors AU also becomes inaccessible due to the CRASH, only Frisk has the ability to leave her AU because of the heart locket given to her by the mysterious person, who turns out to be The Curator of The Rim.