The story follows transporter Jude Gray who accepts a request to deliver a gynoid named Philia to the top of a space elevator amid avoiding dangers from human bandits and machines who have created a "singularity".

[2] Sayuki's intention was to create the type of story where the characters go on a round trip journey, while also incorporating a "boy meets girl" element.

[2] When it came time to present the proposal for the project, Sayuki wanted a writer who could expand on its hard science fiction themes so as to develop a more solid world, leading him to approach Romeo Tanaka to write the scenario.

[2] Sayuki had been in search of an illustrator familiar with drawing science fiction and contacted Swav shortly after viewing his artwork.

For instance, Swav was asked during a production meeting to redesign Philia to "emphasize how she is presented as the story's heroine," to which Swav responded that he would attempt to "merge a film-like design with how things are presented in bishōjo games."

Swav was also instrumental in changing the game's original title of Owari no Stella to Tsui no Stella by using a different reading of the kanji for "end" (終) so that the title would not be overly similar to Seraph of the End (終わりのセラフ, Owari no Serafu).

Both physical editions come bundled with the game's original soundtrack and a full color art book.