The play begins in a factory that makes artificial people, called roboti (robots), whom humans have created from synthetic organic matter. (As living creatures of artificial flesh and blood rather than machinery, the play's concept of robots diverges from the idea of "robots" as inorganic. Later terminology would call them androids.) Robots may be mistaken for humans and can think for themselves. Initially happy to work for humans, the robots revolt and cause the extinction of the human race.
The Tatami Galaxy follows an unnamed third-year student at Kyoto University, using parallel universes as a plot device to explore how his life would have differed had he joined a particular student society (called a "circle" in Japan). The majority of the series' episodes follow the same basic structure: the protagonist joins a circle as a freshman, but is disillusioned when the activity does not lead to the idealized "rose-colored campus life" he dreamed of. He meets Ozu, another student, whose encouragement sets him on a mission of dubious morality. He becomes close to Akashi, a second year engineering student, and makes a promise to her, usually of and within a romantic subtext. He encounters a fortune teller, who cryptically informs him of an opportunity "dangling" in front of his eyes; this prompts him to remember a mochiguman keychain lost by Akashi and recovered by the protagonist, which he leaves hanging from a pull switch in his apartment and perpetually forgets to return to her. The dubious mission ends poorly for the protagonist, causing him to bemoan the state of his life and wonder how things would have differed had he joined a different circle. Time rewinds, and the subsequent episode depicts the protagonist once again as a freshman, joining a different circle.
God Machine - Scenes From The Second Storey.rar