In a futuristic world, extreme weather conditions have caused temperatures to rise rapidly and flood most of the land on the planet. As a result, a massive population decline sharply reduced the workforce. Now the work is done by robots and androids.br In this world, four androids, Cobalt, Kei, Chrom and Neon, are looking for a job. However, they decide to try their luck at Babel, a symbol of entertainment, a tower where artists offer new hope through a musical show...