Being in a community that has no shortage of refreshing content, it's not that hard for fans to find some twisted anime about cold-blooded killers as they embark on unforgettable adventures set in spooky sci-fi, fantasy, and the contemporary world.

Some of these terrifying stories can easily make it to any scariest horror anime list providing viewers with the best experience.

And in today’s article, we’ll be taking a look at some of the best dark anime where the MC is a cold-blooded killer. So without further ado, let’s get started.

10. The Severing Crime Edge

Kiri Haimura is a seemingly ordinary boy with a small problem: he is obsessed with cutting other people's hair. One day, he meets Iwai Mushanokōji, the "Hair Queen" who cannot cut her own hair because of an inherited curse. Kiri discovers that her scissors, "The Severing Crime Edge", are the only thing that can cut them. The scissors were a deadly tool that belonged to his ancestor, Norma Grayland, the most famous serial killer in history.

But little did Kiri know that her encounter with Iwai triggered the beginning of an ancient assassination game to kill the “Hair Queen” using the cursed death tools, the “Killing Products.”

It is said that whoever assassinates the Hair Queen will have one wish granted. Can Kiri protect Iwai from the Assassin Product Owners, known as 'Authors', who are associated with the illegitimate Gossip organization? Let the game begin!

9. The Saga of Tanya the Evil

After a Japanese salaryman is reincarnated as a little girl in a parallel world filled with magical wars, newly minted Tanya Degurechaff decides to create the most comfortable life possible for herself – that of a high-ranking military officer. Behind her innocuous appearance, however, lies the soul of a man who has challenged Being X, the self-proclaimed god, to a battle of wits.

Determined to defy, Tanya resolves to rise through the ranks of her country's military as it slowly descends into a global war, with only Being X proving to be the strongest obstacle in recreating the peaceful life she once knew. But her shrewd actions and combative initiative have an unintended side effect: propelling the mighty Empire into one of the most powerful nations in human history.

8. Darker Than Black

The science fiction anime Darker Than Black is set in a world where a spatial anomaly identified as “Heaven's Gate” appeared in South America and was followed by “Hell's Gate” in Tokyo, altering the sky and wreaking havoc on the landscapes. With the appearance of the Gates came the Contractors, who, in exchange for their humanity, receive supernatural abilities.

Agent Hei, a mercenary, joins the Syndicate alongside his younger sister, Bai, to protect her from potential threats. Recognized as the Black Reaper, one of the most terrifying figures in the world, Hei relies on the help of his comrades in the Syndicate organization to unravel the mysteries of Hell's Gate.

7. 91 Days

The phrase “Revenge is a dish best served cold” fits perfectly with the entire narrative of 91 Days. The story is set in a fictional America during the final years of Prohibition in 1932, when there was no law and lawless mobs and gangs ruled the land. It was a dark time when a single death could result in a full-blown bloodbath and killing could have drastic consequences.

91 Days follows Angelo Lagusa’s journey to avenge his family’s death after witnessing the brutal murder orchestrated by the Vanneti mafia when he was a child. After leaving his hometown, he returns seven years later to make his enemies suffer and eradicate any trace of the “Vanetti” name. Give it a try if you really like dark anime where MC is a cold-blooded killer.

6. Terror in Resonance

Terror in Resonance is absolutely mind-blowing anime by MAPPA Studio told through the eyes of two main characters who are ready to kill without hesitation in order to defend their ideologies in a society they no longer believe in. The series' mature and compelling narrative brilliantly presents the themes of social isolation and generational conflicts in the modern world.

Months after a terrorist attack on a nuclear facility in Japan, a video mysteriously appears on the internet in which two teenagers – identifying themselves as Nine and Twelve – take command of the attack and share their future plans to wreak havoc on Tokyo. Disguised as the “Sphinx”, they threaten to destroy the city of Tokyo unless a cryptic riddle can be solved.

5. Code Geass

Code Geass is a story of war between three superpowers: the Holy Britannic Empire, the Chinese Federation, and the European Union. In this classic event of political and moral turmoil, Lelouch Lamperouge, the exiled prince of Britannia, vows to destroy the tyrannical Royal Empire of Britannia in order to liberate Japan and create a new world that would be better for everyone.

After inheriting the power of complete disobedience through his supernatural ability called “Geass,” Lelouch creates a superhero alter ego to overthrow Britannia once and for all. In his quest for absolute power, Lelouch soon becomes collateral damage, turning everything to ash and making him part of a dark anime where MC is a cold-blooded killer.

4. Angels of Death

Death is on the minds of all the main characters in this series, and Rachel Gardner's dead, lifeless eyes wish the same. Waking up in the basement of a building, she has no idea how or why she is there. She stumbles upon a bandaged killer named Zack, who is trying to escape. After promising to kill her as soon as he is free, Rachel and Zack set out to climb the building floor by floor until they escape.

The “angels” in the building can kill the “sacrifices,” but Rachel and Zack work together to confront anyone who gets in their way. However, as they progress upward, they encounter more twisted people, making their escape more difficult. This series is all about killing, and you’ll enjoy watching this dark anime where MC is a cold-blooded killer.

3. Death Note

Death Note is arguably the most popular and beloved dark anime where MC is a cold-blooded killer. The story follows a high school student named Light Yagami who accidentally comes across a mysterious notebook and soon discovers that this plain-looking notebook can cause death to anyone as long as the person's name is written in it.

Aware of the terrible divine power that has fallen into his hands, Light – under the pseudonym “Kira” – follows his twisted sense of justice with the ultimate goal of cleansing the world of all evildoers. Soon, Light began to imagine himself as the embodiment of justice and the “god of the new world,” but it wasn’t long before he was murdering innocent people just to preserve his identity.

2. Inuyashiki

Inuyashiki follows the lives of two different people who once shared the same bizarre experience, as their paths are destined to collide. After being hit by an explosion of extraterrestrial origin, 58-year-old Inuyashiki Ichiro and 17-year-old Shishigami Hiro wake up with mechanized bodies capable of transforming into weapons.

While Inuyashiki uses his powers to cure people with incurable diseases and fight crime, Shishigami becomes a psychopath who uses his new abilities to murder innocent people just for fun. In a murderous rampage, his acts of merciless cruelty draw the attention of the police, making him the most wanted criminal in the country.

1. Monster

Monster is a critically acclaimed suspense thriller anime series known for its intense storyline and in-depth character illustration. The series tells the story of a Japanese neurosurgeon, Kenzo Tenma, whose life is turned upside down when he becomes involved with one of his former patients named Johan Liebert, who is now revealed to be a psychopathic serial killer.

On paper, Kenzo is the true protagonist of the series, but Johan's role defines the entire narrative of the anime, and calling him the main character wouldn't be wrong! He is a highly manipulative killer, capable of influencing others to an almost unimaginable level, turning them into killers as well. And that's why Monster is considered the best when it comes to portraying a cold-blooded, methodical and calculating killer.

Which of the following dark anime where MC is a cold-blooded killer is your favorite? Feel free to comment your opinion and recommend any other anime like the ones listed above. Also, don’t forget to share this article with your otaku friends.