Byakuya, Senku's father, leaves the space station to return to Earth after the petrification of the human race. Will he be able to convey a message to his son throughout the millennia, and in what form? In the present, Senku and his supporters are being attacked by assassins from the Tsukasa empire. In the midst of a crisis, they begin to forge powerful weapons, the Blades of Science, to protect the village!