23 Best Seinen Manga That Will Satisfy Mature Readers

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Welcome to this week’s recommendation series. Unlike previous weeks where I wrote about something that related to certain anime tropes or some anime characters in a certain series, this week I am going to fully give you all articles about either manga or anime recommendations with some twist in every single one of them. 

For starters, this week’s topic is the 23 best seinen manga that will satisfy mature readers. And trust me this is going to be a good one (and I am not exaggerating). Unlike the shounen demographic that touches your inner child, seinen manga will expose the truth, the harsh reality of adulthood. 

Well, not every manga, but most of it. That is why most of the seinen manga gained tons of popularity and high ranking in the Myanimelist (this is where I took the reference from). You might not appreciate them back when you were younger, but now that we are older and more mature, we can eventually see their true beauty of it. 

I am not going to lie, I needed to restrain myself from giving my personal opinion. Because real talk, some of these are my favorites and I want to talk about it so bad. But here I know that it would be better for me to shut the f up, let you all just read the synopsis, and decide by yourself whether or not it is a good manga. 

So, let us not waste any more time. Starting from number 23, we got:

Best Seinen Manga That Will Satisfy Mature Readers

23. Blame!

Best Seinen Manga: Blame!

Rating: 8.31

Blame! is one of the Best Seinen Manga it’s ranking 23rd on our list, In a huge steel maze filled with terrifying creatures, humanity is forced to isolate itself in small enclaves while living in constant fear of their destruction. In this dystopia, only a strange young man named Killy is brave enough to traverse his unforgiving territory.

With superhuman strength and a rare Graviton Beam Emitter, Killy battles bloodthirsty beasts and other evil forces in his desperate quest to find humans with the Net Terminal gene, genetic information that has the potential to restore a broken world. The story follows Killy as he meets new people, sheds more blood, and gets closer to finding the Net Terminal gene.

22. Liar Game

Best Seinen Manga: Liar Game

Rating: 8.33

Liar Game is one of the Best Seinen Manga it’s ranking 22nd on our list, A stupidly naive college student named Kanzaki Nao receives a package containing 100 million yen and a note that he is now a contestant in the Liar Game Tournament. In this fictitious tournament, participants are encouraged to cheat and lie to gain other participants’ money, with the losers being forced to owe in proportion to the losses. 

When Nao’s first opponent, a former trusted teacher, steals his money, he enlists the help of a con artist named Akiyama Shinichi. Even though they manage to defeat him, Nao and Akiyama decide to pay their debts and advance against competitors ruthlessly through various rounds of the Liar Game tournament.

21. Tokyo Ghoul

Best Seinen Manga: Tokyo Ghoul

Rating: 8.38

Tokyo Ghoul is one of the Best Seinen Manga it’s ranking 21st on our list, Kaneki Ken, barely surviving after a deadly encounter with Kamishiro Rize, a woman who was revealed to be a ghoul, a human-like creature that hunts and eats human flesh, is taken to a hospital in critical condition. After recovering, Kaneki discovers that he somehow underwent an operation that turned him into a half-ghoul. 

And like them, he must consume human flesh to survive as well. After that, he is taken in by the ghoul who runs the coffee shop “Anteiku”, the first to find him by Yoshimura and Kirishima Touka, who teach him to face his new life as a ghoul.

20. Parasyte

Best Seinen Manga: Parasyte

Rating: 8.39

Parasyte is one of the Best Seinen Manga it’s ranking 20th on our list, A “parasite” is a creature the size of a tennis ball whose number and origin are unknown. They attack and take over the human mind to survive. Shinichi Izumi is a 16 year old high school student who lives with his parents in a quiet area. At night, an invading parasite enters Shinichi’s body and tries to control him. 

However, it is unable to complete the takeover process and ends up inhabiting only his right arm, leaving Shinichi and the parasite who calls himself Migi, now in a strange relationship between humans and aliens, Migi suggests they work together to survive.

19. Bungou Stray Dogs

Best Seinen Manga: Bungou Stray Dogs

Rating: 8.48

Bungou Stray Dogs is one of the Best Seinen Manga it’s ranking 19th on our list, Atsushi Nakajima is on the verge of death after being kicked out of his orphanage. With no food and nowhere to go, all hope seems lost until he saves a mysterious man named Osamu Dazai from drowning. Much to his colleague Doppo Kunikida’s annoyance, Dazai offers Atsushi food and reveals that they work for the Armed Detective Agency. 

It is an organization of talented individuals who deal with criminal cases that the authorities cannot handle. The two enlist Atsushi’s help in finding the supernatural tiger that has been wreaking havoc across the city, and he reluctantly agrees. After they settled the case, Dazai offered him a job at the agency.

18. JoJo’s Bizarre Adventure Part 8: JoJolion

Best Seinen Manga: JoJo’s Bizarre Adventure Part 8 JoJolion

Rating: 8.48

JoJo’s Bizarre Adventure Part 8: JoJolion is one of the Best Seinen Manga it’s ranking 18th on our list, The town of Morioh has been devastated by the 2011 Touhouku earthquake and tsunami, which has caused mysterious faults colloquially known as the “Wall Eyes” to appear in town. Local college student Hirose Yasuho discovers a young man suffering from amnesia buried in the rubble and nicknames him “Josuke”.

Josuke tries to uncover the secret of his past as he is also confronted with the activities of a local crime syndicate, which sells the fruit of a mysterious Locacaca tree, capable of healing people and then “taking” something in return. 

17. Mushishi

Best Seinen Manga: Mushishi

Rating: 8.53

Mushishi is one of the Best Seinen Manga it’s ranking 17th on our list, The story features ubiquitous creatures called mushi, who often display supernatural powers. It is implied that there are life forms that are far more primitive than “normal” living things such as animals, plants, fungi, and bacteria, and Mushi are the most primitive of them all. Due to their subtle nature, most humans cannot sense mushi and are unaware of their existence.

However, a select few have the ability to see and interact with mushi. One of them is Ginko. He employs himself as a mushi master and travels from place to place researching mushi and helping people suffering from the troubles it causes.

16. Watashitachi no Shiawase na Jikan

Best Seinen Manga: Watashitachi no Shiawase na Jikan

Rating: 8.58

Watashitachi no Shiawase na Jikan is one of the Best Seinen Manga it’s ranking 16th on our list, Juri Mutou is the daughter of a famous pianist whose career ended after she was born. After the traumatic events she experienced as a teenager, Yuri attempted suicide three times and learned to hate her mother. Her aunt Monica, a priest, invites her to visit a death row inmate. 

Yuu is a death row inmate charged with the murder of three people. He attempts to end his own life in his prison cell. He often receives letters from Monica, who hopes to help but finds this a pity. But when Yuu decides to meet with Monica to tell her he wants her to stop sending letters, he meets Yuri, an encounter that will change both of their lives.

15. Dorohedoro

Best Seinen Manga: Dorohedoro

Rating: 8.67

Dorohedoro is one of the Best Seinen Manga it’s ranking 15th on our list, Hole, a vast favela-like city inhabited by humans and filled with witchcraft. A living land full of magic users and controlled by the witch crime boss En and Hell, a torturous underworld inhabited by all dead witches and ruled by demons, ruled by the demon lord Chidaruma. A man named Caiman searches for his true identity after a wizard’s transformation leaves him with a reptile head and no memory of his past life. 

Together with his friend Nikaido, he viciously attacks the mages in the pits with the aim of sticking their heads into his mouths where strange faces emerge from his throat and judging whether the mages he bitten are the ones responsible for his transformation or not.

14. 20th Century Boys

Best Seinen Manga: 20th Century Boys

Rating: 8.68

20th Century Boys is one of the Best Seinen Manga it’s ranking 14th on our list, Kenji Endo is an ordinary supermarket manager who is just trying to make ends meet. But when he learns that one of his old friends named “Donkey” suddenly committed suicide and a new cult led by a character named “Friends” is becoming more and more famous, Kenji begins to sense that something is amiss. Kenji realized that this cult was more than he ever imagined. 

This mysterious organization targets not only him and his childhood friends, but the entire world faces a grave threat that only his friends can stop. Kenji’s simple life is turned upside down when he reunites with his childhood friends and they must find out how their past is connected to the cult.

13. Akira

Best Seinen Manga: Akira

Rating: 8.70

Akira is one of the Best Seinen Manga it’s ranking 13th on our list, Hastily built atop the ruins of ancient Tokyo, Neo-Tokyo is a sprawling cityscape filled with neon glitz. It is a blend of towering skyscrapers and cutting-edge technology, imbued with explosive, hyper-violent cocktails of biker gangs, poverty and revolutionaries. In this seedy metropolis live Tetsuo Shima and Shoutarou Kaneda, two bikers who are best friends and fierce rivals despite belonging to the same gang. 

Desperate to prove himself to be Kaneda’s equal, Tetsuo unknowingly takes on a stunt culminating in the awakening of a cryptic existence that threatens to change the face of Neo-Tokyo and the lives of those who call the city home, the revival of the secret Government known only as Akira.

12. One Punch Man

Best Seinen Manga: One Punch Man

Rating: 8.73

One Punch Man is one of the Best Seinen Manga it’s ranking 12th on our list, In One Punch Man, after three years of rigorous training, ordinary Saitama has gained immense strength, allowing him to knock out anyone and anything with just a one punch. He decided to put his new ability to good use by becoming a hero. However, he quickly grew tired of defeating monsters with ease and wanted someone to challenge him to bring back the spirit of being a hero. 

When Genos, a cyborg, witnesses Saitama’s incredible power, he is determined to become Saitama’s disciple. Together, the two start working their way up to becoming true heroes, hoping to find a formidable foe and earn respect in the process.

11. Real

Best Seinen Manga: Real

Rating: 8.85

Real is one of the Best Seinen Manga it’s ranking 11th on our list, Tomomi Nomiya, the former captain of her high school basketball team, becomes naughty and decides to drop out of school after being overcome with guilt for ruining a young girl’s life in a traffic accident. While helping her out in her spare time, she comes across Kiyoharu Togawa, a former sprinter who lost his right leg and now plays wheelchair basketball as a backup. 

After challenging Kiyoharu to a singles match, Tomomi was completely defeated. Inspired by this encounter, he realizes that he cannot just let his love for basketball die and decides to do whatever it takes to help others while trying to become a professional player. 

10. Land of the Lustrous

Best Seinen Manga: Land of the Lustrous

Rating: 8.91

Land of the Lustrous is one of the Best Seinen Manga it’s ranking 10th on our list, In the distant future, the earth has been hit by a meteorite six times, destroying it. All the remaining land was reduced to a single coastline while almost all life was destroyed. Over a long period of time, a new race of sentient life forms emerged. This is an immortal gem in the shape of a human. 

Phosphophyllite (Phos) is weak and is considered useless by its peers. Phos enlists the help of his aloof but wise partner, Cinnabar, after being tasked with creating an encyclopedia of natural history, starting their friendship and personal growth. They are at war with the Lunarians who want to exploit their value of luxury.

9. Kaguya-sama: Love is War

Best Seinen Manga: Kaguya-sama Love is War

Rating: 8.92

Kaguya-sama: Love is War is one of the Best Seinen Manga it’s ranking 9th on our list, Miyuki Shirogane was considered a genius because he had the best grades in the country. He is the student council president of the prestigious Shuchiin Academy and works with the beautiful and rich vice president, Kaguya Shinomiya. The two are often considered the perfect couple by students, despite not being in a romantic relationship. 

However, the truth is that after so much time together, the two have developed feelings for each other. Unfortunately, no one wanted to make a confession, because that would be a sign of weakness. With pride for the elites at stake, Miyuki and Kaguya embark on a quest to do whatever it takes to extract confession from the others.

8. Vinland Saga

Best Seinen Manga: Vinland Saga

Rating: 8.98

Vinland Saga is one of the Best Seinen Manga it’s ranking 8th on our list, Young Thorfinn grew up listening to stories of old sailors who had sailed the seas and reached the place of legend, Vinland. However, he currently lived in the era where war between England and Denmark grew worse year by year. Death had become commonplace, and the viking mercenaries loved every moment of it. 

Aligning with either side would cause a huge swing in the balance of power, and the vikings were happy to make a name for themselves and pick up the spoils they earned along the way. In the midst of the chaos, Thorfinn must take revenge and kill Askeladd, the man who killed his father.

7. Kingdom

Best Seinen Manga: Kingdom

Rating: 8.99

Kingdom is one of the Best Seinen Manga it’s ranking 7th on our list, During the Warring States period in China, Li Xin and Piao were two young brothers who, despite their low status as orphaned slaves, dreamed of becoming great generals. One day they met a noble who gave Piao the opportunity to take on an important job in the royal palace of Qin state. 

Xin and Piao broke up and promised each other that one day they would become the greatest generals in the world. However, after a violent coup in the palace, Xin meets the dying Piao, whose final words impel him to act and lead him to meet the young and soon-to-be king of Qin, Ying Zheng. 

6. Grand Blue

Best Seinen Manga: Grand Blue

Rating: 9.05

Grand Blue is one of the Best Seinen Manga it’s ranking 6th on our list, Kitahara Iori looks forward to his new life on the Izu Peninsula as he prepares to start his college life there and live in an apartment above his uncle’s Grand Blue dive shop. However, he is quickly taken aback when he encounters the local dive club, a group of muscular men who spend more time diving, partying, and than actually diving. 

Despite his attempts to outgrow himself from the group, working quickly in antics. At some point, his cousins, Kotegawa China and Kotegawa Nanaka ​​try to convince him about the beauty and charm of diving. 

5. Oyasumi Punpun

Best Seinen Manga: Oyasumi Punpun

Rating: 9.05

Oyasumi Punpun is one of the Best Seinen Manga it’s ranking 5th on our list, Punpun Onodera is a normal 11 year old boy living in Japan. Highly idealistic and romantic, Punpun begins to see his life turn into an adult when he meets the new girl in his class, Aiko Tanaka. Then the quiet boy learns how fickle it is to maintain a relationship and the tremendous difficulties of transitioning from a naive childhood to a confusing adult. 

When his father attacks his mother one night, Punpun realizes something else: the people he admires are not as amazing as he thinks. As his problems escalate, Punpun’s once shy demeanor changes to that of a willful loner. Instead of curing him of conflicting problems and emotions, it only strengthens him.

4. Monster

Best Seinen Manga: Monster

Rating: 9.11

Monster is one of the Best Seinen Manga it’s ranking 4th on our list, Kenzou Tenma, a renowned Japanese neurosurgeon working in post-war Germany, faces a difficult choice: operate on Johan Liebert, an orphan on the verge of death, or operate on the mayor of Düsseldorf. In the end, Tenma decides to risk his reputation by saving Johan, effectively leaving the mayor to die. The director of the Heinemann hospital dismissed Tenma from his post and Heinemann’s daughter, Eva, broke off their engagement.

Tenma loses all hope for a successful career until the mysterious murder of Heinemann gives him another chance. Nine years later, Tenma is the head of the surgical department and will become its own director. Everything seems fine to him at first, until he is soon involved in a chain of gruesome murders that take place across Germany.

3. Vagabond

Best Seinen Manga: Vagabond

Rating: 9.16

Vagabond is one of the Best Seinen Manga it’s ranking 3rd on our list, In 16th century Japan, Shinmen Takezou is a wild and violent young man, both in appearance and action. His aggressive nature has earned him collective reproach and fear for his village, leading him and his best friend Matahachi Honiden to flee in search of something greater than life in the province. The couple joined the Toyotomi Army and yearned for glory. 

When Toyotomi suffered a crushing defeat at the hands of the Tokugawa clan at the Battle of Sekigahara, his friends barely escaped alive. With the two separated, the Shinmen return home on a self-proclaimed mission to inform the Hon’iden family of Matahachi’s survival. Instead, he finds himself a fugitive charged with the murder of his friend based on his violent history.

2. JoJo’s Bizarre Adventure Part 7: Steel Ball Run

Best Seinen Manga: JoJo’s Bizarre Adventure Part 7 Steel Ball Run

Rating: 9.26

JoJo’s Bizarre Adventure Part 7: Steel Ball Run is one of the Best Seinen Manga it’s ranking 2nd on our list, Teenager Johnny Joestar, a former lame horse racer, has come to San Diego to see the start of the American Wild West. There he meets Gyro Zeppeli, a racer with two steel balls on his hips instead of a gun. Johnny watches as Gyro uses one of his steel balls to unleash a fantastical power that compels a man to fire his gun at himself during a duel. 

Johnny accidentally touches a steel ball and feels a force surge through his legs, allowing him to stand up for the first time in two years. Johnny vows to solve the mystery of the steel ball, embarking on his bizarre adventure on the Steel Ball Run across America.

1. Berserk

Best Seinen Manga: Berserk

Rating: 9.42

Berserk is one of the Best Seinen Manga it’s ranking 1st on our list, Guts, a former mercenary now known as the “Black Swordsman”, seeks revenge. After a tumultuous childhood, he finally finds someone he respects and believes he can trust, only to have things fall apart when that person takes everything important from Guts to fulfill his own desires. 

Now sentenced to death, Guts is condemned to a fate where he is relentlessly pursued by demonic creatures. Embarking on a terrifying and ill-fated quest, armed with a formidable sword and terrifying power, Guts will let nothing stop him, not even death itself, until he is finally able to retrieve the head of the man who had flaunted him and his lover. 

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