The clearest answer is 1997.
Part 1 of Tatsuki Fujimoto’s story takes place mainly in 1997, and the manga gives us an exact date during the Gun Devil storyline: September 12, 1997. Part 2 later pushes the story through 1998 and into 1999. So, Chainsaw Man is not locked to one year, but 1997 is the key date for the original story.
And there is one big catch: this is definitely not our version of 1997.
The Chainsaw Man Timeline at a Glance
| Story period | Year |
|---|---|
| Early Part 1 | 1997 |
| Gun Devil events | September 12, 1997 |
| Later Part 1 | 1997 |
| Early Part 2 | Around 1998 |
| Later Part 2 | 1999 |
| Nostradamus prophecy | July 1999 |
The strongest piece of evidence comes directly from the Gun Devil storyline. The manga places the Gun Devil’s attack in Japan on September 12, 1997. Fan-maintained chronology based on the manga consequently places the Public Safety Saga in 1997 and the wider series between 1997 and 1999.
So if somebody asks, “Does Chainsaw Man take place in 1997?” the simple answer is yes, especially Part 1.
How We Know Chainsaw Man Takes Place in 1997
The manga does not open with giant text saying “Tokyo, 1997.”
That would have made things easy.
Instead, Fujimoto lets the date slowly reveal itself. The decisive clue appears during one of Part 1’s darkest sequences.
The Gun Devil appears off the coast of Japan on September 12, 1997. The attack happens around 3:18 PM and becomes one of the most important events in the entire Public Safety Saga.
That single date gives us something solid to work with.
Earlier arcs involving Denji, Power, Aki, Makima, Katana Man and Reze occur before this point in the same general period. That means the anime’s first season and the Reze storyline belong to the late-1990s setting too.
The Escapist also identifies the series as beginning in 1997, while noting that Part 2 moves the timeline forward.
Is Chainsaw Man Set in the 90s?
Yes. Chainsaw Man is very much a 1990s story.
Once you know that, a lot of visual details suddenly make sense.
Characters do not live through smartphones and social media. Television is still a major source of information. Phones, cars, offices, school environments, clothing, and electronics all help create a late-1990s atmosphere.
But those visual clues are only supporting evidence. The 1997 date written into the manga is much stronger proof.
The setting also gives Chainsaw Man a different feeling from many modern anime. Denji cannot instantly search for information online or send somebody a message through an app. Information moves more slowly.
That matters in a story filled with secrets.
This Is Not the Real 1997
Here is where things get wonderfully weird.
Chainsaw Man takes place in an alternate version of history.
The Soviet Union still exists even though it collapsed in our world in 1991. The manga also reveals that Chainsaw Man’s ability to consume certain Devils can erase the concepts connected to them from existence and human memory.
Chapter 84 explains that concepts tied to things such as World War II, Nazis, nuclear weapons, and AIDS had been erased.
That changes history in enormous ways.
So imagine walking into 1997 and recognizing Tokyo, cars, clothing, televisions, governments, and everyday life. Then imagine discovering that major pieces of the history you learned in school simply do not exist.
That is basically the world Fujimoto created.
It looks familiar until you stare at it for too long.
What Year Was Denji Born?
Denji was most likely born in 1980.
Here is the math.
In Chapter 20, Denji tells the other Devil Hunters that he is 16 years old. Later in Part 1, his birthday arrives and he becomes 17.
We also know the major Gun Devil event happens in September 1997.
If Denji turns 17 during 1997:
1997 – 17 = 1980
That makes 1980 the logical birth year.
There is one small detail worth keeping straight. The manga does not give readers a normal character profile containing Denji’s complete month, day, and year of birth. Reference sources list 1980, but his exact birth date remains unknown.
So it is safer to say:
Denji was born around 1980, with 1980 being the accepted timeline answer.
Does Chainsaw Man Part 2 Still Take Place in 1997?
No.
Part 2 moves beyond Part 1’s original 1997 setting.
Calendar clues and the progression of the story move events into 1998, while later developments eventually reach 1999. The broader manga chronology covers 1997 through 1999.
One of the biggest calendar clues comes from the Prophecy of Nostradamus.
In Chapter 122, Yoshida discusses a prediction concerning July 1999, when a great catastrophe is expected to threaten humanity. Public Safety takes that prophecy seriously enough to investigate deaths connected with it.
This is important because it shows that Fujimoto is not using the late 1990s as random background decoration. Dates actually become part of the plot.
A Major Manga Spoiler About the Timeline
The finished manga makes the timeline even stranger.
Chainsaw Man concluded with Chapter 232 in March 2026, ending Part 2 and the series.
In the final chapters, Pochita’s actions result in the timeline being reset and a new reality being created. That means the complete story becomes more complicated than simply saying, “Everything happens from 1997 to 1999.”
For someone watching the anime or reading Part 1, though, 1997 remains the answer that matters most.
Why Is the Reze Arc 18+?
There is a common misunderstanding here.
Chainsaw Man – The Movie: Reze Arc is not rated 18+ everywhere.
Age classifications vary by country.
In the United States, Sony Pictures lists the movie as Rated R.
In the United Kingdom, the BBFC gave versions of the movie a 15 classification. Its content advice mentions strong bloody violence and gore, along with injury detail, nudity, sexual material, threat, and language.
Australia classified it MA 15+, citing strong blood and gore, supernatural themes, and animated violence.
India gave the film an A certificate, meaning it was certified for adult audiences there.
So why do some viewers see an 18+ warning?
Usually because ratings depend on the country, cinema, or streaming service. The Reze Arc contains much stronger material than a light teenage romance would suggest. There is bloody combat, dismemberment, gore, nudity, suggestive material, and intense violence.
Basically, Denji meets a cute girl.
Then Chainsaw Man remembers that it is Chainsaw Man.
Does the Reze Arc Also Take Place in 1997?
Yes, the Reze storyline belongs to Part 1, before the September 1997 Gun Devil events that give us the manga’s strongest date marker.
The movie continues directly from the anime series and follows Denji’s encounter with Reze. Sony describes it as a continuation of the anime rather than a separate or non-canon adventure.
That means viewers watching the anime and Reze Arc are still exploring the 1997-era portion of Denji’s life.
Why the 1997 Setting Matters More Than You Might Think
Fujimoto could have set Chainsaw Man in a vague modern world and changed very little about the basic idea.
But 1997 gives the story something special.
It separates Denji from our hyper-connected world. It lets governments hide information more easily. It makes television, newspapers, rumors, and official organizations more powerful. It also allows Fujimoto to rewrite recent history without making the world completely unrecognizable.
Most importantly, the date creates a strange tension.
We know what happened in our 1997.
Denji does not live in that world.
His Soviet Union still exists. Entire pieces of human history have vanished. Devils can change not only people’s futures but apparently their understanding of the past.
So what year does Chainsaw Man take place?
The answer starts with 1997. Part 1 and the anime-era story belong mainly to that year, Denji was likely born in 1980, and Part 2 carries the story toward 1998 and 1999 before the manga’s final timeline-changing events.
Knowing the year does not make Chainsaw Man less mysterious.
It actually makes its world much stranger.
I am Jeremy Jahns – Your Cinematic Explorer
Immerse in movie reviews, Hollywood insights, and behind-the-scenes stories.