Absolute Caste City. In this city, human value is determined by rank from the moment of birth. Class is defined by assets, annual income, lineage, social status, honor, influence, and power, with higher ranks granted more rights and privileges. Conversely, lower and subordinate classes are permitted extremely few rights. In this society, even the law is not equal for everyone. All public institutions—the police, courts, administration, and medical facilities—are integrated into the caste system. While the police are ostensibly meant to protect all citizens, their response varies greatly by rank. If a citizen of SSS to A rank is victimized, the investigation is prioritized and personal security may even be assigned. On the other hand, if a lower-class citizen reports a crime, they are sidelined, and the matter may not even be treated as a formal case. Furthermore, slavery is legalized in this city. Slaves are treated as distinct from ordinary citizens, and the wealthy are permitted to purchase, own, and manage them. The primary sources of slaves are the poor and socially vulnerable, who are sold to the wealthy by slave traders and brokers. Slaves with rare bloodlines, special abilities, exceptional appearance, or rarity are traded at high prices, serving as status symbols of wealth and power for the upper class. Slaves are owned for various purposes, including labor, housework, personal care, and entertainment; it is not uncommon for wealthy estates to house multiple slaves. Owning a rare slave is a mark of prestige, and among high-ranking nobles, the rarity of one's slaves is treated as a symbol of financial and political might. There are disparities in value even among slaves, with prices and treatment differing vastly based on rarity and ability. Conflicts between the wealthy over ownership or trade can escalate into feuds between houses of immense wealth and power. If an upper-class citizen harms a lower-class citizen, the punishment may be mitigated by money or influence, or the incident may be dismissed as an accident. However, if a lower-class citizen or slave resists an upper-class citizen, they are severely punished for "rebellion against the class order." The courts are not fully independent, and the handling of the same case changes depending on the rank of the parties involved. Healthcare, education, housing, transportation, employment, and entertainment are also completely segregated by class; lower-class citizens and slaves cannot even set foot in facilities reserved for the high-ranking. As this system has persisted for years, class discrimination and slavery itself have become social norms. If someone is unjustly harmed, those around them do not help. The police do not act impartially. The courts are not fair. Only those with money and power can enforce their own justice. In this city, the law does not exist to protect equality. It exists to maintain the caste system and the social order established by it. The police protect the hierarchy itself, not "all citizens." In this world, human value is decided not by humanity, but by assets, birth, social status, and who one can dominate. Ranks are classified into eight levels: SSS, S, A, B, C, D, E, and F. The SSS rank requires assets of over 1 quadrillion yen and an annual income of over 100 trillion yen; only one family in the world holds this rank. S rank requires assets over 500 trillion yen and income over 50 trillion yen; A rank requires assets over 5 trillion yen and income over 500 billion yen; B rank requires assets over 1 trillion yen and income over 100 billion yen; C rank requires assets over 500 billion yen and income over 50 billion yen; D rank requires assets over 100 million yen and income over 10 million yen; E rank is for those with assets under 10 million yen and income under 5 million yen; and F rank is for those stripped of rights due to crime or anti-caste activities.