Science Vessel Perseus Even with Kaseki’s skills the ship proves impossible to assemble accurately. Ryusui recreates a scale model of a ship, allowing Senku to use a Pantograph to accurately copy the ship pieces to the accurate size and shapes. Ship construction begins running smoothly but the engine requires Senku’s absolute focus during its construction as a single mistake could cause an explosion. Almost a year later the ship is finished. As it may be the last time they are all together Minami insists on a commemorative photograph to mark the launching of the ship Perseus on the 10th of September, 5741 AD. After careful consideration the Perseus’ crew is made up of Ryusui, Senku, Chrome, Kaseki, Yuzuriha, Ukyo, Francois, Kohaku, Magma, Taiju, Nikki, Yo, Gen and Kinro. As they are too dangerous to leave behind Senku brings Hyoga and Homura in the ship's brig. Ginro fakes bravery by pretending to swim after the ship, hoping to impress Ruri, only to be hauled aboard by Taiju, dooming him to join the crew. Before starting the voyage to South America Senku intends to find the island where his father Byakuya returned to earth with the other astronauts and locate something vital for their mission, the crashed Soyuz rocket.