Yuto Suzuki’s Sakamoto Days has grown from a sharp-action comedy into one of Shonen Jump’s most character-rich series, blending absurd humor, grounded family life, and high-level assassin warfare. What keeps the manga consistently engaging is not just Taro Sakamoto’s retired-hitman premise, but the sheer volume of distinct characters orbiting his world—each with a role, reputation, and combat identity that feeds the story’s momentum. Below is a comprehensive, newsroom-style character report covering the major and minor figures shaping Sakamoto Days, with each entry delivering a concise, factual snapshot of who they are and why they matter.
Ai Amo
Ai Amo is a member of the Amo family, operating within the assassin world with a calm exterior that masks dangerous efficiency and loyalty-driven brutality.
Akira Akao
Akira Akao is a young, determined assassin-in-training whose emotional growth and moral conflict add a grounded human layer to the violent world she navigates.
Amane Yotsumura
Amane Yotsumura is tied to the prestigious Yotsumura lineage, carrying both skill and emotional weight as part of a family deeply embedded in assassin politics.
Aoi Sakamoto
Aoi Sakamoto is Taro’s wife and emotional anchor, representing normalcy, compassion, and the civilian life Taro fiercely protects from his past.
Apart
Apart is a ruthless assassin known for sadistic tendencies and unpredictable violence, often pushing confrontations into chaotic and dangerous territory.
Asakura
Asakura operates in the shadowy underbelly of the assassin community, functioning as a background player whose allegiance shifts based on survival.
Atari
Atari is an eccentric but lethal presence, blending playful behavior with sudden bursts of deadly intent that unsettle both allies and enemies.
Atou
Atou serves as a low-profile operative whose limited appearances still reinforce the vastness of the assassin ecosystem.
Bacho
Bacho is a brute-force combatant who relies on raw strength, embodying the physical extremes common among underworld enforcers.
Boiled
Boiled is an unhinged assassin whose explosive fighting style mirrors his volatile personality, making him a walking disaster in combat.
Byodo
Byodo is a composed killer who contrasts chaotic fighters by favoring precision and emotional restraint.
Carolina Reaper
Carolina Reaper earns his name through sadistic efficiency, presenting an exaggerated but terrifying example of assassin theatrics.
Club Jam
Club Jam is a duo-based threat whose synchronized attacks emphasize coordination over individual dominance.
Daikyo
Daikyo operates as an information-linked figure, bridging combat operations with logistical support.
Dump
Dump functions as muscle within organized assassin groups, often deployed for intimidation and destruction.
Erio Muto
Erio Muto plays a support-oriented role, reinforcing missions through strategy rather than frontline violence.
Etsuko Satoda
Etsuko Satoda adds civilian contrast to the series, grounding scenes in everyday realism away from bloodshed.
Fukumitsu
Fukumitsu exists on the fringe of the assassin hierarchy, filling the world with believable secondary operatives.
Gaku
Gaku is one of the most dangerous young assassins, blending reckless aggression with elite-level combat instincts.
Geisha
Geisha operates with elegance and lethality, weaponizing poise as much as physical skill.
Gozu
Gozu is a physically imposing enforcer whose presence alone signals impending violence.
Granny Miya
Granny Miya subverts expectations, presenting elderly wisdom paired with lethal experience.
Hana Sakamoto
Hana Sakamoto symbolizes innocence and motivation, serving as the emotional core of Taro’s peaceful resolve.
Haruma
Haruma functions as a combat-focused assassin with minimal dialogue and maximum physical impact.
Heisuke Mashimo
Heisuke Mashimo is a former assassin turned ally, combining comedic insecurity with surprising marksmanship.
Higuchi
Higuchi fills an administrative role, representing the bureaucratic side of the assassin world.
Hoshi
Hoshi operates quietly, contributing to the sense of an ever-present, unseen network of killers.
Hotta
Hotta appears as a functional combatant, reinforcing the depth of organized assassin forces.
Hyo
Hyo is an emotionally driven fighter whose raw power often overrides tactical thinking.
Ikari
Ikari embodies reckless dedication, charging into danger without hesitation.
Inoda
Inoda plays a minor operational role, enhancing world-building consistency.
Inoue
Inoue contributes as a background presence tied to organized movements.
Iriya
Iriya’s limited appearances still underline the reach of the assassin community.
Jay Erk
Jay Erk adds international flavor, reinforcing the global scale of the underworld.
Jo Shackles
Jo Shackles is known for restraint-based combat, emphasizing capture over execution.
Joichiro Kaji
Joichiro Kaji balances authority and experience, serving as a stabilizing figure.
John Paichy
John Paichy brings foreign assassin culture into focus through distinctive combat style.
Jumbo Tanishi
Jumbo Tanishi contrasts size with agility, delivering unexpected battlefield effectiveness.
Kamihate
Kamihate is a sniper legend, feared for patience, distance control, and psychological dominance.
Kanaguri
Kanaguri blends artistic obsession with violence, turning assassination into performance.
Kashima
Kashima’s brutality and mechanical enhancements make him one of the series’ most disturbing antagonists.
Kazuko
Kazuko serves a supporting role, emphasizing interpersonal connections over combat.
Kei Uzuki
Kei Uzuki operates behind the scenes, manipulating outcomes through planning rather than force.
Kill Baby
Kill Baby represents absurdist violence, aligning with the manga’s dark comedic tone.
Kindaka
Kindaka is a respected veteran whose reputation commands instant respect.
Kippei Saionji
Kippei Saionji reflects elite upbringing and disciplined lethality.
Kobayashi
Kobayashi supports operations through coordination and logistics.
Kondo
Kondo appears as a dependable but understated figure within organized groups.
Konomi Amo
Konomi Amo reinforces the Amo family’s internal dynamics and influence.
Kumanomi
Kumanomi uses brute force and resilience to overwhelm opponents.
Kurii Ningu
Kurii Ningu’s eccentric methods highlight stylistic diversity among assassins.
Laser Yamamoto
Laser Yamamoto specializes in high-tech weaponry, blending science with violence.
Lu Shaotang
Lu Shaotang is a former triad member turned store employee, combining loyalty, skill, and chaotic humor.
Lu Wutang
Lu Wutang represents old-world criminal authority and family legacy.
Mad Horiguchi
Mad Horiguchi lives up to his name, embodying unrestrained aggression.
Mafuyu Seba
Mafuyu Seba contributes emotional nuance through restrained, thoughtful behavior.
Minimalist
Minimalist strips combat to its bare essentials, emphasizing efficiency.
Mizuno
Mizuno supports operational continuity within larger groups.
Nakajima
Nakajima functions as a standard operative within the assassin structure.
Nakase
Nakase reinforces the layered hierarchy of underworld operatives.
Nakatsugawa
Nakatsugawa’s presence emphasizes institutional depth.
Namiki
Namiki plays a civilian-adjacent role, grounding the narrative.
Nao Toramaru
Nao Toramaru adds youthful volatility to high-risk missions.
Natsuki Seba
Natsuki Seba brings emotional restraint and calculated decision-making.
Ninnin Man
Ninnin Man introduces exaggerated ninja tropes into modern combat.
Noro
Noro is a monstrous enforcer whose sheer size defines his threat.
Obiguro
Obiguro operates quietly, reinforcing covert operations.
Oki
Oki’s tactical approach contrasts reckless fighters.
Onigahara
Onigahara’s intimidating presence signals elite-level danger.
Osaragi
Osaragi is a top-tier assassin whose calm demeanor masks overwhelming lethality.
Piisuke
Piisuke offers brief comedic relief within tense arcs.
Remi
Remi adds personality-driven conflict rather than pure violence.
Riki Kanehira
Riki Kanehira embodies professionalism and loyalty.
Rion Akao
Rion Akao is a legendary assassin whose legacy shapes current events.
Russo Rullet
Russo Rullet introduces Western assassin culture and weapon styles.
Sachiko
Sachiko supports character development through interpersonal scenes.
Samejima
Samejima functions as a dependable frontline fighter.
Satoru Yotsumura
Satoru Yotsumura represents the burden of family honor and expectation.
Saw
Saw’s weapon-based combat leaves lasting impact.
Seco Zuru
Seco Zuru emphasizes tactical discipline.
Sei Asaki
Sei Asaki bridges authority and field operations.
Shiina Saionji
Shiina Saionji adds elegance to elite assassin circles.
Shin Asakura
Shin Asakura is a telepathic assassin whose moral struggle defines the series’ heart.
Shinaya
Shinaya operates on the fringes, reinforcing network depth.
Shino Yotsumura
Shino Yotsumura expands the Yotsumura family narrative.
Shiori
Shiori grounds scenes emotionally rather than violently.
Shishiba
Shishiba is an elite Order member, known for brutal efficiency and unshakable composure.
Soichi Amo
Soichi Amo is a manipulative figure whose influence fuels conflict.
Son Hee
Son Hee adds international perspective to assassin operations.
Super Antlion Hell Brothers
This duo represents exaggerated teamwork taken to lethal extremes.
Tada
Tada supports missions through coordination.
Takamido
Takamido reinforces institutional authority.
Takamura
Takamura is an Order legend, embodying absolute combat supremacy.
Takebe
Takebe functions as a secondary operative.
Tanabata
Tanabata blends style with lethal intent.
Tanaka
Tanaka’s adaptability makes him a reliable asset.
Taro Sakamoto
Taro Sakamoto is the retired assassin turned family man whose unmatched skill defines the series.
Tasuku Ando
Tasuku Ando adds investigative depth to the narrative.
Tatsu
Tatsu contributes raw combat energy.
Tenkyu
Tenkyu emphasizes speed-based combat.
Torres
Torres reinforces global assassin presence.
Uda
Uda functions as operational support.
Unnamed Cop Assassin
This figure highlights corruption within law enforcement.
Usami
Usami balances authority with pragmatism.
Wang
Wang represents criminal hierarchy influence.
Watarai
Watarai supports behind-the-scenes operations.
X’s Organization
X’s Organization operates as a shadow network driving large-scale conflict.
Yabuchi
Yabuchi functions as a reliable subordinate.
Yamada
Yamada supports logistical operations.
Yasui
Yasui adds civilian perspective.
Yoichi Nagumo
Yoichi Nagumo is an Order assassin whose playful demeanor hides terrifying unpredictability.
Yokkun
Yokkun delivers light-hearted contrast.
Yutaro
Yutaro reinforces everyday realism within extraordinary circumstances.
Together, these characters form the living machinery of Sakamoto Days, transforming a simple premise into a layered, high-impact manga universe where comedy, violence, and humanity collide daily.
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