GuessAnime.

1. Berserk

His name is Guts, the Black Swordsman, a feared warrior spoken of only in whispers. Bearer of a gigantic sword, an iron hand, and the scars of countless battles and tortures, his flesh is also indelibly marked with The Brand, an unholy symbol that draws the forces of darkness to him and dooms him as their sacrifice. But Guts won't take his fate lying down; he'll cut a crimson swath of carnage through the ranks of the damned—and anyone else foolish enough to oppose him! Accompanied by Puck the Elf, more an annoyance than a companion, Guts relentlessly follows a dark, bloodstained path that leads only to death...or vengeance.

Notes:

- Volumes 1-5 contain the 16 prequel chapters 0A - 0P.

- Chapter 83 was omitted from Volume 13 due to the author’s request.

- Volume 14 includes “Berserk: The Prototype”.

- Due to the author's passing, starting from Chapter 365, the manga is illustrated by Studio Gaga and supervised by Kouji Mori .

Berserk is currently publishing . It is also Known as: ベルセルク, Berserk: The Prototype

2. Hwansaenghan Amsaljaneun Geomsul Cheonjae

I was a chained dog in my past life. I didn’t remember my parents, and I lived an emotionless life, like a tool. That life ended with my master horrifically murdering me.

I thought that was the end of my life. But when I opened my eyes again, I was born as the youngest child of the continent’s most powerful family.

For both revenge and those who treasured me in my new life, I wielded the sword instead of the dagger.

The Reincarnated Assassin Is a Genius Swordsman is currently publishing .

3. Vinland Saga

As a child, Thorfinn sat at the feet of the great Leif Ericson and thrilled to wild tales of a land far to the west. But his youthful fantasies were shattered by a mercenary raid. Raised by the Vikings who murdered his father, Thorfinn became a terrifying warrior, forever seeking to kill the band's leader, Askeladd, and avenge his father. Sustaining Thorfinn through his ordeal are his pride in his family and his dreams of a fertile westward land, a land without war or slavery … the land Leif called Vinland.

Notes:

- Won the Grand Prize at the Japan Media Arts Festival in 2009.

- Winner of the 36th Kodansha Manga Award in the General category in 2012.

Vinland Saga is currently publishing . It is also Known as: ヴィンランド・サガ, Vinland Saga

4. Gachiakuta

A boy lives in a floating town, where the poor scrape by and the rich live a sumptuous life, simply casting their garbage off the side, into the abyss. When he's falsely accused of murder, though, his wrongful conviction leads to an unimaginable punishment—exile off the edge, with the rest of the trash. Down on the surface, the cast-off waste of humanity has bred vicious monsters, and to travel the path to vengeance against those who cast him into Hell, a boy will have to become a warrior…

Gachiakuta is currently publishing . It is also Known as: ガチアクタ, Gachi Akuta

5. Kagurabachi

Young Chihiro spends his days training under his famous swordsmith father. One day he hopes to become a great sword-maker himself. The goofy father and the serious son--they thought these days would last forever. But suddenly, tragedy strikes. A dark day soaked in blood. Chihiro and his blade now live only for revenge.

Kagurabachi is currently publishing . It is also Known as: カグラバチ, 神樂鉢, KGB, คากุระบาจิ

6. [Oshi no Ko]

"In the world of showbiz, lies are weapons." Goro works as an OB-GYN in the countryside, a life far removed from the entertainment industry. Meanwhile, his favorite idol, Ai Hoshino, has begun her climb to stardom. The two meet in the "worst possible way," setting the gears of fate in motion! The amazing Aka Akasaka and Mengo Yokoyari team up to depict the world of showbiz from a completely new perspective in this shocking series!

【OSHI NO KO】 is finished and has 16 Volumes and 168 Chapters. It is also Known as: 【推しの子】, My Favorite's Child, Favorite Girl, My Idol's Child, Oshi no Ko, [Mein*Star], เกิดใหม่เป็นลูกโอชิ

7. Fukushuu wo Koinegau Saikyou Yuusha wa, Yami no Chikara de Senmetsu Musou suru

Raul who had defeated the demon king as the strongest hero should have become the savior of the world.

Having his treasured companions and family killed by power hungry aristocrats, he was executed with false charges brought against him by the princess. Just before his life collapsed, at last his heart fell into darkness.

"...I will tear those traitors from limb to limb. Burn them at the stake. Sever them to pieces. Skewer them. I will kill every one of those bastards without mercy and make them taste hell.....!!!"

Obtaining the power of darkness, Raul was revived. Sneering, he vowed revenge.

“Oh, I’m looking forward to it – I'll bask in their blood to my heart's content.”

Several days after the hero's revival, in the imperial capital where flowers bloomed in profusion, the parade that would advance towards tragedy began.

The Hero Who Seeks Revenge Shall Exterminate with Darkness is currently publishing . It is also Known as: 復讐を希う最強勇者は、闇の力で殲滅無双する, The Strongest Brave Who Craves Revenge, Extinguish with the Power of Darkness

8. Shinjiteita Nakamatachi ni Dungeon Ouchi de Korosarekaketa ga Gift "Mugen Gacha" de Level 9999 no Nakamatachi wo Te ni Irete Moto Party Member to Sekai ni Fukushuu & "Zamaa!" Shimasu!

A kid named Light is the only human member of the adventuring party Legion of Races, but humans are by far the weakest race in his world. When his comrades abandon him to the lowest levels of a dungeon, Light resorts to the gift of Infinite Gacha to create a harem of Lvl 9999 allies! With his powerful and beautiful new friends by his side, can Light escape the dungeon and exact vengeance upon the Legion of Races…and the entire world?

Backstabbed in a Backwater Dungeon: My Party Tried to Kill Me, But Thanks to an Infinite Gacha I Got LVL 9999 Friends and Am Out For Revenge is currently publishing . It is also Known as: 信じていた仲間達にダンジョン奥地で殺されかけたがギフト『無限ガチャ』でレベル9999の仲間達を手に入れて元パーティーメンバーと世界に復讐＆『ざまぁ！』します！, My Gift LVL 9999 Unlimited Gacha, Backstabbed in a Backwater Dungeon

9. Hero Killer

The world is in constant turmoil, with constant wars breaking out between Heroes and Villains. Gifted with supernatural abilities, one lone girl sets out on a bloody path for revenge against the injustices of the world she lives in. With the constant clashes between titans, no one is safe. If no one is willing to protect the innocent, who are the real heroes, and who are the real villains? What truly separates one from the other?

Hero Killer is currently publishing .

10. Jitsu wa Ore, Saikyou deshita?

A guy is reborn into another world to have a promised peaceful life. A baby born of power and royalty, abandoned in the woods for having a power level that cannot be measured by modern radars . Just what will he have to do to attain the peaceful life he so desires?

Actually, Am I the Strongest? is currently publishing . It is also Known as: 実は俺、最強でした?, Am I Actually the Strongest?, 其實，我乃最強?, Apakah Aku Sebenarnya Yang Terkuat?, ¿En realidad soy el más fuerte?

11. Janburui Gisa

When Nagyunn’s twin brother, Najin, is murdered before his very eyes, he vows to avenge his brother’s death by assuming Najin’s identity. But although the two may look alike, when it comes to fighting, Nagyunn lacks the talent and skill his brother possessed. In order to successfully execute his plot for revenge, Nagyunn resolves to train himself to become the prodigious knight-in-training his brother once was. Will Nagyunn be able to keep his identity a secret before others begin to catch on to his act?

Source: Webtoons

The Ember Knight is currently publishing . It is also Known as: The Knight of Embers, The Last Knight of Embers, The Last Knight From The Fire

12. Kaifuku Jutsushi Yarinaoshi

Healing magicians cannot fight alone.’ Keare, who was bound by this common knowledge, was exploited again and again by others.But one day, he noticed what lay beyond healing magic, and was convinced that a healing magician was the strongest class. However, by the time he realized that potential, he was deprived of everything. Thus, he used healing magic on the world itself to go back four years, deciding to redo everything.This is a heroic tale of one healing magician who became the strongest by using knowledge from his past life and healing magic.

Kaifuku Jutsushi Yarinaoshi is currently publishing . It is also Known as: 回復術士のやり直し, Kaifuku Jutsushi Yarinaoshi: Sokushi Mahou to Skill Copy no Chouetsu Heal, The Rework of Healer, Redo of Healer, Kaifuku Jutsushi Yarinaoshi, Kaifuku Jutsushi no Yarinaoshi

13. The Warrior Returns

After saving one world, warrior Minsu Kim returns to Earth only to find that he’s lost everything... so he decides to destroy the world he used to call home. In his rampage, he kills teenager Jeongsu Park and his family. But instead of dying normally, Jeongsu is transported to another world, where he finds that he's now a warrior himself. After killing the demon king of this alternate world and honing his skills as a warrior, Jeongsu returns to earth, hell-bent on revenge against Minsu. As the two warriors fight with the fate of their country in the balance, who will emerge victorious?

The Warrior Returns is currently publishing . It is also Known as: Hero Has Returned

14. Jeonnampyeonui Michingaereul Gildeuryeotda

"Father, please allow me to end Mikael Alanquez."

From the moment she had foreseen her death, Reinhardt continued to repeat her final wish. When she came to her senses, she found herself at her father's funeral fifteen years earlier. Back to when she had been divorced by Crown Prince Mikael Alanquez, the reason why her father lost his life. As revenge, Reinhardt stabbed the Crown Prince’s leg. And as a consequence, she was exiled to a faraway territory. While she was on the rough journey, she encountered someone unexpected… The dirty, pitiful kid she picked up, in the previous timeline, was not only a war hero but the emperor's illegitimate child — the "mad dog" whom her ex-husband had tamed.

Jeonnampyeonui Michingaereul Gildeuryeotda is finished and has null Volumes and 112 Chapters. It is also Known as: Eu Domei o Cachorro Raivoso do meu Ex-marido, I Tamed My Ex-Husband's Crazy Dog, 驯服了前夫的疯狗

15. Guard Pass

Lim Se-Jun, who likes to eat, is fat and has a large physique. He has high self-esteem and a firm personality that doesn't even care about being teased for being fat. He has only one friend, Seo Ha-Jin. She has always been learning Jiujitsu to protect Sejun since childhood.

One day, Se-Jun has trouble with a delinquent in the same class, and Ha-Jin sees it and destroys that delinquent. But one night, Ha-Jin is found severely beaten and suffers from a badly injured knee and more serious psychological trauma. Se-Jun tries to tell the police, but when the investigation doesn't make much progress, he can't control his anger and goes to find the culprit himself, but he's defeated by the delinquent who knows Jiujitsu.

Then he learns Jiujitsu from a man named Jason who saved him. Three months later, Se-Jun, who has learned Jiujitsu and lost weight, finds out that a veiled group is involved, and wants to destroy them. A school action drama depicting individual revenge.

Guard Pass is finished and has null Volumes and 175 Chapters.

16. Shokei Sareta Kenja wa Lich ni Tensei Shite Shinryaku Sensou wo Hajimaru

The Sage Dwight, he along with the Hero defeated the Demon Lord who sank the world into darkness.However, they were falsely accused of becoming the next Demon Lords because of his power, and were thrown to The Valley of the Dead to die.......But though his flesh has rotten away, he lives on as a skeleton because of his grudge against the world. Dwight has vowed to deny that wrong world, and with a power that surpasses even the Demon King of the past, and also leading countless Skeletons he's going to start an all out war...!

The Executed Sage Is Reincarnated as a Lich and Starts an All-Out War is currently publishing . It is also Known as: 処刑された賢者はリッチに転生侵略戦争を始める, Shokei sareta Kenja wa Lich ni Tensei shite Shinryaku Sensou wo Hajimeru

17. Quest Jisangjuui

Gaming geek Suhyeon Kim hates school, and the dislike is mutual. Every day he faces relentless bullying from his classmates, leading him to wish his life was more like the RPG quest games he plays. Suhyeon’s wish is granted when a quest prompt pops up in real life with an easy quest and an enticing reward. With nothing to lose he takes the chance, and one quest soon leads to another. As the stakes get higher and the rewards get bigger, Suhyeon soon finds he’s gone from being an ostracized nobody to the top of the school. Just how far will Suhyeon take his quests, and how far will he fall if he refuses to participate?

Source: Webtoon

QUESTISM is finished and has null Volumes and 174 Chapters. It is also Known as: Quest Supremacy

18. Mugen no Juunin

Manji is an immortal swordsman, who has been cursed with eternal life. He has grown tired of living with all the death he has created. He has no skills other then those of killing, thus he forms a plan to regain his mortality: he shall kill one hundred evil men for each good one he has killed. The old witch who afflicted Manji with immortality agrees to Manji's proposition and Manji is set on his path to kill one thousand evil men. On his journey he meets a young girl, Rin, who has her own vengeance to seek against the sword school whose members slaughtered Rin's family. Rin and Manji journey together, each hoping to find some kind of peace. In their way are many varied enemies. Rin and Manji are almost constantly under attack and must learn to live their lives, avoiding being consumed by revenge.

Note: Originally published with 219 chapters, which were then recollected into 207 chapters in the tankoubons.

Blade of the Immortal is finished and has 30 Volumes and 207 Chapters. It is also Known as: 無限の住人, Mugen no Juunin, Inhabitant of Infinity

19. Justice for the Villainess

Charlotte had dedicated everything to the Emperor in the past... However, what she got in return was stone-cold betrayal and freezing loneliness. But, while she had been awaiting her death after being confined in prison, a questionable man appeared in front of her!

"Could you help me murder the emperor?"

Charlotte, who had danced with a sword for the Emperor, meets Ruslan and is reborn as 'Juju.' Now, her sword is directed at the Emperor. And the two who had met as comrades start bearing feelings that go beyond just that...

A romance that blooms in a revenge story that's extravagant and strategic! The story of the strong-willed and charismatic villainess, Charlotte!

"Why would a villainess have virtues?"

Justice for the Villainess is finished and has null Volumes and 150 Chapters. It is also Known as: Where Is Justice For the Villainess?, Where the Villain's Loyalty Lies, Why Would a Villainess Have Virtue

20. Geu Gisaga Lady Saneun Beop

The sword of my closest friend and trusted adjutant pierced my body. When I opened my eyes again, I had become a noble lady of the enemy kingdom. In an unfamiliar and weak stranger’s body, three year’s time was lost, in which my homeland was brought to ruin. I was unable to come to my senses because of the pain of betrayal and confusion of my identity. However, eventually I decided to live on as 'Luciphella Aidine', a noble who wields a sword.

From a Knight to a Lady is currently publishing . It is also Known as: The Way That Knight Lives as a Lady, How The Knight Lives As A Lady, 騎士女爵的生存之道, 重生骑士的名媛生活