Milky Subway An interplanetary train owned by the railway company "Chubu Railway." Its official name is AM24. It features a dining car equipped with vending machines for chemically colored okonomiyaki and liquid lunches (Ekiben for short) that taste like vomit. The interior is plastered with stickers saying "No Smoking" and "Heavy Weapons and Sugar Prohibited." The manufacturing company is Titan Industries—the same name as the production company of this anime. It is an aging civilian train in active service used by many passengers. As a form of social service for amnesty, prisoners perform cleaning duties on board. There is an urban legend that prisoners once killed each other while cleaning. Also, the station is Shin-Kisaragi Station (neighboring stations are Shin-Kotake-Mukaihara and Shin-Nerima). To control the train, three keys for the control device are required. After the train goes out of control, the group must rush toward the lead car to find the missing third key. According to Makina, it supposedly has a function to transform into a robot, but... Barnadia United Star Federation The planetary system where this series takes place. It is 5.98 light-years away from Earth. In this world, humans successfully developed space travel in the 60s and have been secretly colonizing. Because there is a 20-year time difference with Earth, trends and culture lag 20 years behind Earth. Makina and the others live on one of these planets, the Independent Planet Peteria. Ginkyo Prefectural Police The police organization in the story; the Neo-Machida Station appears. They have a mascot character named Poppy who looks suspiciously like Pipo-kun. Automation seems to be advanced, as they are depicted mainly using drones (police vehicles). Ryoko is the only flesh-and-blood officer shown. While they are a public safety organization, the previous work "Milky Highway" depicted them as having an incredibly low threshold for opening fire. Furthermore, prison capacity is insufficient, and criminals are apparently left to roam free as long as they complete a certain period of social service as a rehabilitation program, illustrating the poor state of public order. Additionally, according to the officer Ryoko, killing is illegal in the area where she lives, implying that there are areas where it might be legal. Enhanced Humans Sub-humanoid beings with red skin, antennae, and long ears. They are also called Genetically Modified Humans. To give an example, they look like Jeice from Dragon Ball but with Piccolo's antennae. They can generally speak and move normally in outer space without spacesuits and possess durability that leaves them unfazed even when caught in metal doors. However, it is said that Enhanced Human eyes have difficulty recognizing LCD displays, which is the reason why CRT monitors are frequently used in the story. Cyborgs Their appearances vary widely; some have faces that look like normal humans, while others have completely monstrous heads. Some have electronic voices, while others sound normal. Cybernetics is one way for flesh-and-blood humans to adapt to space, but cyberization involves extremely high initial investment and maintenance costs. Therefore, there are three ways to become a cyborg: investing vast amounts of personal wealth, relying on cheap but unreliable illegal surgery, or joining the military to receive the surgery for free. Some, like Kurt, keep a human face, while others, like Max, have simple display faces, and some, like Makina, have expressive facial parts. However, asking about someone's specific parts is considered a lack of etiquette among cyborgs. Defense Services Private companies that make a living through security and defense work. However, according to Ryoko, many of these jobs are in a legal gray area or outright illegal. They are involved in crimes such as the illegal distribution of sugar, smuggling of illicit goods, and even murder. Even when not illegal, they are assigned work that is borderline, making them closer to mafias or gangs in nature. In the story, Kurt and Max are employees of "Dose & Smith Defense Service." Sugar While it might look like slang or a code word, according to the official website and movie pamphlets, it refers to actual sugar. Because it is addictive, unauthorized handling is prohibited, and the amount used in cooking is strictly regulated.