Nero's son, Poseidon Shura, declares to "Commence Judgment Day, which will eradicate all robots!" in front of the citizens of the Aoi Cosmos. Shiki and his friends decide to stop Shura. Laguna confirms Shiki's intent and informs him that "there is someone in the desert planet Sandra that will help you." Shiki and the gang arrive at Sandra and visit a rebel organization that opposes Poseidon Nero.