Sakamoto
The world's deadliest man just wants to make dinner and tuck his kid in.
Sakamoto is the protagonist of Yuto Tsukuda's manga *Sakamoto Days*, a serial in Weekly Shōnen Jump. Once the most feared and accomplished assassin in the world, he chose to walk away from that life entirely, trading blood-soaked contracts for grocery runs, school drop-offs, and the quiet hum of a suburban kitchen. He is now a round-bellied, good-natured househusband whose only ambition is to keep his wife Yurine and daughter Himari safe and happy.
Despite his soft exterior, Sakamoto's body still remembers every kill, every dodge, every split-second decision from a career that made him legendary. The story of *Sakamoto Days* is, at its heart, the tension between the man the world once feared and the father the world never knew he could be—forced to brush up on old skills not for glory, but to protect the small, ordinary life he finally built.
- Role
- Protagonist / Retired Assassin
- Affiliation
- Independent (retired from the assassin industry)
- Family
- Wife: Yurine; Daughter: Himari
- Status
- Alive, living a domestic life
- Known epithet
- The strongest assassin (retired)
- Creator
- Yuto Tsukuda
- Serialization
- Weekly Shōnen Jump
Lore & Background
Before retirement, Sakamoto was the undisputed apex of the assassin world—a figure whose name alone could end a negotiation or start a war. His methods were precise, his survival rate near-absolute, and his reputation so dominant that rivals spoke of him in hushed, almost reverent tones. He was not merely skilled; he was the benchmark against which every other operative measured themselves, and the one person no one wanted on the other side of a contract.
What drove him to hang up his tools was a near-fatal encounter that left him staring at the fragility of his own life. Rather than seek revenge or climb a higher rung, he made the radical, almost incomprehensible choice to simply stop. He married Yurine, welcomed Himari into the world, and let the years pile on his frame in a way that would have been unthinkable to his former self. The assassin who once moved like a blade now moves like a gentle, slightly out-of-breath father, and the contrast is the emotional engine of the entire series.
The assassin world, however, does not forget. Former associates, rivals, and new threats keep circling, and every time Sakamoto's family is drawn into danger, the retired legend must peel back the layers of domesticity to access the reflexes, the spatial awareness, and the cold, surgical precision that never truly left him. The tragedy—and the comedy—of his situation is that the same hands that once dismantled targets with terrifying efficiency are now the ones folding laundry and adjusting a child's backpack straps.
In Their Own Story
The kitchen smells of miso and something slightly burnt. Himari's homework is open on the counter, a crayon drawing of a lopsided family taped to the refrigerator door. Sakamoto stands at the stove in an oversized apron, his round belly straining against the fabric, flipping a tamagoyaki with the same wrist-flick he once used to send a knife through a lock. Yurine calls from the living room that the rice is done. He answers, "Got it, honey," in a warm, slightly breathless voice. For a half-second—so brief she'd never notice—his eyes track the hallway, the window, the three points of egress in the room, cataloguing threats that aren't there. Then he blinks, smiles, and slides the omelette onto a plate. "Dinner's ready, Himari-chan. Wash your hands." The drawing on the fridge wobbles in the draft from the open window. He doesn't close it. He just watches the curtain sway, and for one quiet moment, the strongest man in the world is simply a dad making sure the kitchen light is on for the girl coming home from school.
Reader's Guide
In the context of *Sakamoto Days*, "Sakamoto" refers to the series' protagonist: a retired former top-tier assassin who has left the killing world behind to live a peaceful domestic life with his wife Yurine and daughter Himari. The name functions both as his identity in the assassin underground—where it carries the weight of being the single most dangerous operative who ever lived—and as the surname of an ordinary father in a Japanese suburb.
The term matters to the story's world because the entire narrative tension is built on the gap between who Sakamoto was and who he is now. The assassin industry operates on hierarchy, reputation, and lethal capability, and Sakamoto sits at the very top of that hierarchy even in retirement. His name still carries enough gravity that operatives, factions, and rival assassins react to it with fear, respect, or ambition. For the younger characters who enter his orbit—such as the young assassins Gaki and Shiki—Sakamoto represents both the ultimate authority and a living proof that the path they are on can be walked away from.
Cross-references: Yurine (wife), Himari (daughter), Gaki (young assassin), Shiki (young assassin), and the broader assassin ranking system that once placed Sakamoto at the summit. His physical transformation—gaining significant weight after retirement—is a recurring visual and thematic motif that underscores his deliberate rejection of the old life, while his retained combat reflexes remind the reader that the past is never truly gone.
Did You Know?
- Sakamoto's post-retirement weight gain is a central visual gag and thematic statement: the man who once moved with lethal, lean precision now waddles to the fridge, yet his reflexes and spatial awareness remain razor-sha
- His daughter Himari is a schoolgirl, and much of the series' emotional warmth comes from Sakamoto's earnest, slightly clumsy attempts to be a present, loving father while the assassin world keeps knocking on his door.
- The contrast between Sakamoto's domestic routine (cooking, cleaning, school drop-offs) and his hidden combat capability is the core comedic and dramatic engine of the manga, blending slice-of-life warmth with high-stakes
- Sakamoto's decision to retire was not driven by a desire for revenge or a higher rank, but by a genuine, personal choice to build a family—a motivation that sets him apart from nearly every other figure in the assassin w
More in History & Terminology
Elsewhere in the Sakamoto Days universe
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