Beryllium-Infected Flowey
Textbox
Overworld
Description
While AU hopping, Beryllium killed a Sans at the end of a Genocide route, then killing the human as well. That resulted in a RESET, and Beryllium killed Sans and the Human again. While fighting Sans after the RESET, he accidentally infected a nearby Monster, which eventually led to the entire AU being overtaken.
Beryllium stayed for a while, but eventually left, and Flowey and Napstablook followed him. This led to the two being the only survivors of the AU after Error destroyed it.
Infection: When first infected, a Monster loses their ability to heal, and becomes sluggish. This easily leads to their death. However, once they're fully infected, they become stronger and capable of spreading the infection, and also listens to Beryllium's commands.