Prologue Arc
A retired legend defends his shop against the ghosts of a violent past.
It establishes the core premise: a legendary killer hiding in plain sight while his past threatens to destroy his peaceful family life. This section sets the tone for the entire series by blending everyday slice-of-life comedy with high-stakes action. It defines the stakes immediately, showing that Sakamoto's retirement is fragile and constantly under siege by those who remember his legend.
- Protagonist
- Taro Sakamoto
- Key Rival
- Kashima (or other minor assassins)
- Family
- Wife Aoi, Daughter Hana
Lore & Background
Taro was once untouchable, feared by every assassin in Japan for his unparalleled skill and ruthlessness. He retired to marry Aoi and raise a family, gaining weight and softening his edge to live a normal life. However, his reputation never faded among the underworld. The Prologue Arc introduces the fragile peace of his new life, but the reasons for his retirement and the organization's pursuit are explored in later arcs. It highlights the contrast between his chubby exterior and lethal capability. Every interaction in the store is layered with tension, as customers could be threats disguised as shoppers. This arc also establishes the rules of engagement for Sakamoto. He prefers non-lethal solutions when possible but will eliminate threats decisively if his family is at risk. The lore emphasizes that his strength is not diminished by age or weight, only hidden.
In Their Own Story
Rain taps against the glass of the convenience store. Sakamoto rests behind the counter, chewing gum lazily. A customer enters, but their eyes scan the aisles like a predator. Sakamoto smiles, not out of friendliness, but recognition. He reaches for a bag of chips, his hand steady as stone beneath the casual movement.
Reader's Guide
The arc begins by showcasing Sakamoto's mundane life before revealing his deadly history through flashbacks and incoming threats. Assassins sent to eliminate him test his resolve, forcing him to break his retirement rules to protect his family. Key turning points include the first public display of his combat skills using store items as weapons. This segment solidifies the bond between Shinjiro and his wife, proving their partnership is built on mutual trust regarding his secret life. The narrative shifts from comedy to tension as the reality of his past catches up. We see how he utilizes household objects with lethal precision, establishing his unique fighting style early on. The conflict centers on maintaining the status quo versus the necessity of violence. By the end of this arc, Sakamoto accepts that peace requires vigilance. His daughters remain unaware of the danger, adding emotional stakes to every confrontation. The introduction of rival assassins sets up future conflicts while defining the immediate threat level.
Did You Know?
- Sakamoto's weight gain was partly a deliberate disguise to hide from former enemies.
- The convenience store acts as both a sanctuary and an arsenal for the protagonist.
- His wife Aoi is aware of his past and actively supports his protection duties.
- The arc establishes that Sakamoto's retirement was voluntary, not forced by injury.
Frequently Asked Questions
What is the main focus of the Prologue Arc?
This arc introduces Shinjiro Sakamoto living a quiet life running a convenience store in Tokyo after retiring from his career as the world's top assassin. It establishes how his peaceful existence is threatened by enemies from his violent past who refuse to let him rest.
Who are the core characters established in this section?
The narrative centers on Shinjiro and his family, including wife Nezu and daughters Haruka and Shizuku. It also establishes Taiyo Asano as a key rival determined to drag Sakamoto back into violence.
Why is Sakamoto's retirement considered fragile?
Despite his desire to be a normal shopkeeper, his legendary reputation ensures that former associates and enemies continue to track him down. The narrative shows that even minor interactions can trigger deadly conflicts from his time as an assassin.
What is the outcome of the conflict in this arc?
The section concludes with Shinjiro neutralizing the immediate threat posed by Taiyo Asano and his group. This resolution allows him to temporarily return to managing his convenience store, though the danger remains.
What tone does this section set for the series?
It blends lighthearted slice-of-life comedy involving store management with intense, high-stakes action sequences. This contrast defines the core identity of Sakamoto Days by juxtaposing mundane errands with lethal combat skills.