The Orbital Children takes place in an original setting where commercial development on
Mars began in the 2010s. In 2045, the United States and China are aiming for the Moon and
Jupiter, while Japan is conducting its development at a relatively safe distance in low Earth orbit. Mankind relies on AI to manage facilities such as the space station and legal matters. ; : The fourth commercial space station in the world, in
geocentric orbit at 350 km from the ground. Designed as a space hotel, Anshin is the first station in history to allow minors to live temporarily in space. It was built by Japan, but due to difficulties in design and funding, it is privately operated by Deegle. There are automated shops, restaurants and Internet access like on Earth. As its name suggests, Anshin is marketed with safety as a major selling point. ; Deegle : An American
technology company specializing in Internet-related services and products. It is also ambitious in space development. Its branding resembles that of
Google. ; John Doe : A mysterious international hacker group that exists on the Internet. ; Seven : A decommissioned AI that is said to have reached the highest level of intelligence in history, which happened in the 2030s. It made numerous inventions in Seven Technologies but was destroyed when it fell into an uncontrollable state. :; Lunatic Seven incident :: The last phase of Seven’s existence, when it went out of human control. The details have not been disclosed, but it is said that products developed by Seven in its uncontrolled state caused accidents. The UN considered this to be a critical situation. :; The Seven Poem :: A mass of data produced by Seven in its Lunatic state. Though it is not literally a poem, its format is cryptic. A semi-religious fringe, including Nasa Houston, interpret the data as prophetic. The majority sees it as occult nonsense. ; Intelligence limiter : A means of limiting AI functionality, itself designed by AI and is widely deployed under the laws of UN2.1. There are 26 limiters in total, and it is against the law for unauthorized person to remove them. It was enacted by UN2.1, fearing a repeat of the Lunatic Seven incident, to limit the increase in AI intelligence. ; UN2.1 : The
United Nations (UN), upgraded for the AI age. The UN believes that the rise in intelligence of AI should be controlled by humans. ; Moonchild : The term for the 15 children born on the Moon. Of the 15, only Touya and Konoha have survived, because of
implants designed by Seven. Moonchild implants counteracted conditions unexpectedly adverse to infants. Most of the 15 never got the implants, while those who did instead died in puberty when the implants partially dissolved, became toxic and a medical liability in their own right. ; Oniqlo : A competitive clothing manufacturer, it also produces a cost-saving commercial space survival pressure suit, which are not EVA rated. The name and logo are very similar to the Japanese
Uniqlo clothing company. ; PeerCom : A fictional technology based on
peer-to-peer networking that allows communication devices nearby to connect directly to each other without going through the Internet. It has become widespread in this world. It is similar to
Bluetooth in some aspects. ; Smart : Next-generation wearable device to replace smartphones. The screen and computer is worn on the palm and back of the hand, making it look as if the hand has become a smartphone. There is a printed type and an old-fashioned sticker type. In the printed type, the micro-machine self-organizes and makes circuits, which gradually decrease in number, and when they can no longer be activated, the user has them printed again. ; Telada : Solid-state battery systems, able to recharge electronics and run emergency systems. Design and logo is similar to
Tesla, specifically like that of the
Tesla Powerwall. ; Commercial Comets : Comets used to secure water and other resources. Nanomachines sprayed onto the comet's surface by drones produce a thin film of computers and engines that can self-propagate and control the comet's orbit at will. ==Release==