The Assassin's Association

Lore & Background

In the world of Sakamoto Days, assassination is not a crime but a licensed profession, and the Assassin's Association is the institution that makes that possible. It issues contracts, sets the code of conduct its members must follow, and maintains a ranking system that places every operative on a clear hierarchy. Breaking the Association's rules—taking unauthorized jobs, harming civilians, or simply failing to deliver—can result in a revoked license, a bounty, or worse. This regulatory framework is what allows the story's characters to operate in a world where a hitman can walk into a coffee shop without being arrested, yet still face serious consequences for stepping out of line.

The Association's internal politics are a constant undercurrent. Its leadership wields enormous influence over who rises and who falls, and its decisions ripple outward through the entire assassination community. For a retired legend like Sakamoto, the Association represents the life he left behind: the contracts, the rankings, the endless cycle of violence. For a young bodyguard like Ganta, it is an invisible architecture of rules and threats that defines the world he is trying to survive in.

What makes the Association a compelling narrative force is its duality. On one hand, it provides order in a profession that would otherwise be pure anarchy. On the other, it is a power structure that can be manipulated, corrupted, or weaponized. The tension between the Association's stated mission of fair regulation and the darker ambitions of those who operate within or against it drives much of the series' escalating conflict.

In Their Own Story

The rain had not stopped for three days. Inside the Association's district office, a junior clerk stamped another contract into the ledger—target name redacted, fee column filled in neat blue ink. Across the hall, a senior enforcer sharpened a blade on a whetstone, the rhythmic rasp filling the silence between the hum of fluorescent lights. Neither looked up when the elevator dinged and a man in a rumpled jacket stepped out, his son's small hand tucked into his own. The enforcer's eyes flicked to the boy, then back to the steel. The clerk's stamp paused mid-descent. Somewhere above them, in a glass-walled office on the top floor, a chair sat empty and a phone lay face-down on a desk, ringing. The rain kept falling. The ledger kept filling. And the man in the jacket simply walked to the coffee machine, as if the whole architecture of death and order that surrounded him were nothing more than bad weather he had to walk through to get home.

Reader's Guide

Purpose: The Assassin's Association exists to regulate the legal assassination industry. It issues licenses, sets a code of conduct, adjudicates disputes between operatives, and enforces penalties for rule-breaking. Its stated goal is to prevent the profession from devolving into uncontrolled violence that harms civilians and destabilizes society.

Leadership & Membership: The Association is headed by a leadership body that oversees all licensed assassins. Members are ranked within a hierarchy, and their standing determines the scope of contracts they can accept and the resources available to them. Sakamoto, before his retirement, occupied the highest echelon of this ranking. Membership is not automatic; it requires licensure and adherence to the Association's rules.

Resources & Enforcement: The Association maintains its own enforcement capacity and can deploy operatives to handle rule-breakers, settle disputes, or carry out its own directives. It controls the flow of contracts and the information network that connects clients to killers, giving it leverage over every operative in the industry.

Relationship to Sakamoto & the Central Conflict: Sakamoto's retirement removed the Association's most powerful figure from active service, creating a power vacuum and a personal stake in the events that follow. The Association's rules, contracts, and enforcement actions form the structural framework within which the story's conflicts unfold. Its decisions—who to license, who to punish, which contracts to authorize—directly escalate or de-escalate the threats facing Sakamoto, Ganta, and their allies. The Association is less a single villain than an institutional force whose machinations, whether deliberate or bureaucratic, shape the stakes at every turn.

Did You Know?

• In the world of Sakamoto Days, assassination is a legal, licensed profession, and the Assassin's Association is the body that makes that possible—meaning a hitman can be as regulated as a lawyer or a doctor.
• Sakamoto's decision to retire from the top of the Association's ranking was a seismic event in the assassination community, effectively removing the industry's most feared name from active service.
• The Association's rules create a moral and practical framework for the story: characters can be punished not just for killing, but for breaking the specific protocols that govern how, when, and against whom they are perm
• The Association's regulatory role means that even 'retired' assassins like Sakamoto can still be drawn back into its orbit through contracts, bounties, or the actions of those who still answer to its authority.