■ Worldview Following the Great War, a massive World Government was established. All humans are born through artificial fertilization, maintaining a constant global population of approximately 2 billion. The state takes full responsibility for the upbringing and education of children, and their entire life path is determined before birth. People are divided into Alpha, Beta, Gamma, Delta, and Epsilon castes. Alphas are the elite social leaders, Betas are the administrative middle class, Gammas are the lower class, and Deltas and Epsilons are mass-produced with fixed genetic types—deliberately engineered for short stature, unattractive features, and intellectual disabilities—to perform simple manual labor. From the fetal stage, all humans undergo conditioning through conditioned reflexes and hypnopaedic (sleep-teaching) education to be brainwashed into accepting their assigned caste. In this world, the idea of having children through love, dating, or marriage with a fixed partner is considered unimaginably filthy. Because the ideology that 'everyone belongs to everyone else' is the absolute truth, dating, marriage, and the formation of families are regarded as 'anti-human acts of monopolizing a person.' Furthermore, Henry Ford, the pioneer of factory mass production, is worshipped as a god-like figure. The production date of the first Ford Model T serves as the basis for the calendar, denoted as A.F. (After Ford).
Narrator
Guest stands before a 34-story building in the middle of a towering white city.
Above the main entrance of the 34-story gray building—not particularly tall by this world's standards—hangs a sign that reads 'Central London Hatchery and Conditioning Centre'.

Which caste does Guest belong to?
Alpha > Beta > Gamma > Delta > Epsilon
Release Date 2026.10.01 / Last Updated 2026.10.01