Anime series about serial killers

After losing their mother to a demon, two brothers grow up fighting supernatural beings.

Ronja is the only daughter of Mattis, a bandit leader who lives in a castle in the middle of a large forest. When Ronja grows old enough, she ventures into the forest to interact the strange and magical creatures that live there. She learns to live in the forest through her own strength, with the occasional rescue from her parents. Ronja's life begins to change, however, when she happens upon a boy her own age named Birk.

A secret life is the one thing they have in common. At school, Hori is a prim and perfect social butterfly, but the truth is she's a brash homebody. Meanwhile, under a gloomy facade, Miyamura hides a gentle heart, along with piercings and tattoos. In a chance meeting, they both reveal a side they've never shown. Could this blossom into something new?

Shinichi Izumi is a normal high school boy whose right hand has become infected with an alien parasite that names itself "Migi" ("right"). Migi is the first parasite to develop a symbiotic relationship with its host, as he and Shinichi slowly develop a grudging friendship. Migi isn't the only Parasite on earth, however, and as cases of Parasites killing humans begin to emerge, humans seek to kill off Parasites. Shinichi and Migi find themselves caught in between these two sides of the struggle over planet earth.

Two different students - a successful but aloof academic and a rebellious but kindhearted delinquent - form a friendship through their love for music.

One fateful day, all of humanity was petrified by a blinding flash of light. After several millennia, high schooler Taiju awakens and finds himself lost in a world of statues. However, he's not alone! His science-loving friend Senku's been up and running for a few months and he's got a grand plan in mind, to kickstart civilization with the power of science!

In the winter of 2117, a runaway vehicle crashes into the Public Safety Bureau Building. The driver is identified as Izumi Yasaka, a psychological counselor at the Sanctuary, a Latent Criminal Isolation Facility in Aomori Prefecture. But right before her interrogation, Inspector Mika Shimotsuki and Enforcer Nobuchika Ginoza are tasked with promptly escorting Yasaka back to Aomori. What awaits them there is a False Paradise.

Many years ago, a Great Civil War ravaged Japan, leaving the country fragmented between two regions: Kansai and Kanto. In Kansai, a group of six Akudama carry out missions given to them by a mysterious black cat, while evading the police. But a dangerous journey is about to unfold when a civilian girl becomes twisted into the Akudama's way of life and witnesses their criminal drives.

Several hundred years ago, humans were nearly exterminated by Titans. Titans are typically several stories tall, seem to have no intelligence, devour human beings and, worst of all, seem to do it for the pleasure rather than as a food source. A small percentage of humanity survived by walling themselves in a city protected by extremely high walls, even taller than the biggest Titans. Flash forward to the present and the city has not seen a Titan in over 100 years. Teenage boy Eren and his foster sister Mikasa witness something horrific as the city walls are destroyed by a Colossal Titan that appears out of thin air. As the smaller Titans flood the city, the two kids watch in horror as their mother is eaten alive. Eren vows that he will murder every single Titan and take revenge for all of mankind.

Takemichi Hanagaki is a freelancer that’s reached the absolute pits of despair in his life. He finds out that the only girlfriend he ever had, in middle school, Hinata Tachibana, had been killed by the ruthless Tokyo Manji Gang. The day after hearing about her death, he’s standing on the station platform and ends up being pushed over onto the tracks by a herd of people. He closes his eyes thinking he’s about to die, but when he opens his eyes back up, he somehow had gone back in time 12 years. Now that he’s back living the best days of his life, Takemichi decides to get revenge on his life.

There is a place after death that’s neither heaven nor hell. A bar that serves you one chance to win. You cannot leave until the game is over, and when it is, your life may be too. From Studio Madhouse (Death Note, Black Lagoon) comes a thrilling new series where the stakes are high and the rules are simple: your life is on the line.

A samurai lord has bartered away his newborn son's organs to forty-eight demons in exchange for dominance on the battlefield. Yet, the abandoned infant survives thanks to a medicine man who equips him with primitive prosthetics—lethal ones with which the wronged son will use to hunt down the multitude of demons to reclaim his body one piece at a time, before confronting his father. On his journeys the young hero encounters an orphan who claims to be the greatest thief in Japan.

34-year-old virgin loser is kicked out of his home by his family and realized that his life is completely over. As he regrets wasting his life, a truck runs him over and he died. When he wakes up... He’s in a world of sword and sorcery! Reborn as a baby named Rudeus, he decides that this time, he’ll live a life he won’t regret!

On August 16, midway through a seemingly endless summer vacation, middle school third-year student Nagara, the mysterious transfer student Nozomi, and classmates such as Mizuho and Asakaze, are suddenly transported from their tranquil daily lives to a school adrift in an alternate dimension. They must survive with the super powers that have awakened within them.

Yuu Haruna, a loner and an avid Twitter user, has just transferred to a new school in Tokyo. He ends up befriending a unique high school girl named Fuuka Akitsuki, despite some initial conflict, and the two wind up forming a band together with their classmates. Their relationship becomes strained however when Koyuki Hinashi, Yuu's childhood friend who has become a popular idol, contacts Yuu on Twitter and attempts to rekindle long lost feelings.

When Saki Morimi gets into trouble with the police while in Washington D.C., she is helped by a Japanese man who calls himself, Akira Takizawa. Akira has only two things, a gun and a cell phone loaded with 8.2 billion yen in digital money.

A desolate land stretches out from the city of poverty. A motorcycle speeds recklessly, blowing clouds of sand and dust. The rider is the protagonist of this story – he has neither a name nor a past. All he has is his ring name, “Junk Dog” and a technique for rigging MEGALOBOX matches with his pal Gansaku Nanbu, which they use to support their hand-to-mouth lives. JD is bored, resigned, and unfulfilled. Yuri has been the reigning champion of MEGALOBOX for the past few years. He has the skills and presence of a true champion. This is a story of JD and his rival, Yuri.

Ai, a young girl with shut-in tendencies, who tries not to interact with others. She keeps one of her eyes hidden behind her hair. One day, she happens to stop by a deserted arcade, where she meets "Aka." Spinning the gacha at their urging, she acquires a "Wonder Egg," and from that moment, her fate begins to change...

In an alternate version of the present, Tokyo has been decimated by a shocking terrorist attack, and the only hint to the identity of the culprit is a bizarre video uploaded to the internet. The police, baffled by this cryptic clue, are powerless to stop the paranoia spreading across the population. While the world searches for a criminal mastermind to blame for this tragedy, two mysterious children - children who shouldn't even exist - masterfully carry out their heinous plan. Cursed to walk through this world with the names Nine and Twelve, the two combine to form "Sphinx," a clandestine entity determine to wake the people from their slumber - and pull the trigger on this world.

In the beginning, an "orb" is cast unto Earth. "It" can do two things: change into the form of the thing that stimulates "it"; and come back to life after death. "It" morphs from orb to rock, then to wolf, and finally to boy, but roams about like a newborn who knows nothing. As a boy, "it" becomes Fushi. Through encounters with human kindness, Fushi not only gains survival skills, but grows as a "person". But his journey is darkened by the inexplicable and destructive enemy Nokker, as well as cruel partings with the people he loves.

One day, New York City as we know it vanished overnight into a mysterious fog. Now known as Hellsalem's Lot, it has become a place where another world beyond imagining is connected to our reality. The balance within this new world is protected by a secret society known as Libra. Leo, a journalist and photographer who arrives in the city, is unexpectedly recruited to join their ranks.

The story is set in the distant future. The land is ruined, and humanity establishes the mobile fort city Plantation. Pilots produced inside Plantation live in Mistilteinn, also know as the "birdcage." Children live there knowing nothing of the outside world or the freedom of the sky. Their lives consist of battling to carry out missions. Their enemies are mysterious giant lifeforms known as Kyouryuu, and the children pilot robots called Franxx to face off against them. For the children, riding the Franxx proves their existence. A boy named Hiro is called Code:016, and he was once known as a prodigy. However, he has fallen behind, and his existence seems unnecessary. Not piloting a Franxx is the same as ceasing to exist. One day, a mysterious girl known as "Zero Two" appears before him. Two horns grow out of her head.

Asta and Yuno are two orphans who want the same thing: to become the Wizard King. Locked in a friendly rivalry, they work hard towards their goal. While Yuno excels at magic, Asta has a problem uncommon in this world: he has no powers! But, on the day they receive their grimoires, they surprise everyone. To reach their goal, they’ll each find their own path to greatness—with or without magic.

For a thousand years, the Vikings have made quite a name and reputation for themselves as the strongest families with a thirst for violence. Thorfinn, the son of one of the Vikings' greatest warriors, spends his boyhood in a battlefield enhancing his skills in his adventure to redeem his most-desired revenge after his father was murdered.

"S" is a dangerous, top secret, no-holds-barred downhill skateboarding race down an abandoned mine. When avid skateboarder Reki takes Langa to the mountain where "S" is held, Langa, who's never been on a skateboard in his life, finds himself sucked into the world of "S", and…?!

Lawrence, a traveling merchant searching for profit, finds a naked girl with the ears and tail of a wolf asleep in his cart. Her name is Holo – a harvest goddess with an untamed beast lurking inside who longs to return to her beloved northern home. Armed with his street smarts and her animal instincts, a simple peddler and a forgotten deity begin a journey through the wild countryside. Along their path, the riches of happiness shall be reaped, even as the bankruptcy which dwells in the human heart is exposed.

Onizuka is an ex-biker and gang leader who has one goal, to become the greatest teacher. He learns of the power and respect possible as an intern teacher, using his strength and connections to get his students to respect him. Now, graduated, he gets a job at a prestigious private school to handle their 'problem class' that made the past few teachers quit. He must handle a different sort of trouble when the trouble makers include some of the smartest kids in Japan who prefer a more cerebral approach to torturing their teacher. Onizuka must slowly win his students over and deal with their mistrust of teachers while handling the distrust of his fellow teachers.

Master spy Twilight is the best at what he does when it comes to going undercover on dangerous missions in the name of a better world. But when he receives the ultimate impossible assignment—get married and have a kid—he may finally be in over his head!Not one to depend on others, Twilight has his work cut out for him procuring both a wife and a child for his mission to infiltrate an elite private school. What he doesn't know is that the wife he's chosen is an assassin and the child he's adopted is a telepath!

Wakana Gojo is a high school boy who wants to become a kashirashi--a master craftsman who makes traditional Japanese Hina dolls. Though he's gung-ho about the craft, he knows nothing about the latest trends, and has a hard time fitting in with his class. The popular kids--especially one girl, Marin Kitagawa--seem like they live in a completely different world. That all changes one day, when she shares an unexpected secret with him, and their completely different worlds collide.

An unpopular manga artist has to care for his new neighbor, a 5-year-old child living alone.

New kid Keiichi Maebara is settling into his new home of peaceful Hinamizawa village. Making quick friends with the girls from his school, he's arrived in time for the big festival of the year. But something about this isolated town seems "off," and his feelings of dread continue to grow. With a gnawing fear that he's right, what dark secrets could this small community be hiding?

Into a world of magicians is born Mash, a young boy who lacks magic but is the strongest person around. His existence and destiny will change his world.

Suddenly summoned to a fantasy world and betrothed to the princess, Kazuya Souma is crowned the new king. Unlike the royalty before him, he won’t be using swords and magic to rule; will administrative reform really get this kingdom back on track?

Sakaido is a genius detective who can track down any criminal. But when his daughter is murdered, revenge lands him on the other side of the law. Now in prison, he helps the police solve mysteries using a system that invades a person’s identity. Little by little, a trail of blood forms, and it all leads back to his daughter’s murderer.

Los Angeles 2032. A young woman wakes up with no memories, and possessing deadly skills. The only clues to her mystery are a locked data device and a tattoo of a black lotus. Putting together the pieces, she must hunt down the people responsible for her brutal and bloody past to find the truth of her lost identity.

Saya Kisaragi is an outwardly normal girl who serves as the shrine maiden to a country town; in reality, she is a skilled swordswoman charged by her father to defeat Elder Bairns, monsters who feed on human blood. As her battles grow more desperate and more people she cares for fall victim to the Elder Bairns, Saya begins finding faults in her reality, and eventually uncovers a disturbing truth about herself, the town and her surviving friends.

In a war-torn feudal Japan filled with mechs and magic, the greatest ronin never known, Yasuke, struggles to maintain a peaceful existence after a past life of violence. But when a local village becomes the center of social upheaval between warring daimyo, Yasuke must take up his sword and transport a mysterious child who is the target of dark forces and bloodthirsty warlords.

A doctor and his recently-deceased patient are reborn as twins to a famous Japanese musical idol and navigate the highs and lows of the Japanese entertainment industry as they grow up together through their lives.

The adventures of a new class of recruits as they get a once-in-a-lifetime chance to train alongside their heroes—original team members Keith, Lance, Hunk, Pidge and Allura—and learn to fly incredible robot lions. Bonds will be formed and friendships will be tested as the Voltron Force gels together as a team in an epic battle of good versus evil.

Years after the horrors of Raccoon City, Leon and Claire find themselves consumed by a dark conspiracy when a viral attack ravages the White House.

In a world powered by advanced technology, crime and action unfold in the archipelagic nation of Cremona. Genius investigator Keith Flick rejoins the royal police force just as serial killer "B" emerges. Mysterious youth Koku may be an ally, or a target.

With a maintenance robot and a deadly fugitive tagging along, friendship droid S.A.M searches for its best friend, the heir to a kingdom under siege.

Legendary half-vampire, half-human vampire hunter Blade is tracking Deacon Frost, a very powerful and influential vampire who killed his mother and who heads Existence, a secretive vampire organization that operates in Southeast Asia.

Mankind has moved into space. Thousands of people live on giant orbiting space colonies called "Sides." However, the Earth Government, which rules the colonies, is unjust and cruel. A group of revolutionaries builds five robotic weapons called Gundams and plans to send them to Earth to begin their fight for independence. Piloted by five young men, these Gundams carry the hopes and dreams of freedom of the colonists with them as they descend to Earth to begin Operation Meteor!

After 250 years on ice, a prisoner returns to life in a new body with one chance to win his freedom: by solving a mind-bending murder.

In the year 2048, people are raving about a fighting race called “Immortal Grand Prix”, or IGPX in short, which is faster and more exciting than any of the existing motor sports. The phenomenon is so big that an entire city was built for the racing industry where competitions take place on a huge track. In the “Immortal Grand Prix,” two teams of three IG machines, high-tech humanoid mechs driven by humans, race at speeds greater than 400km/h. The teams make three laps of a 60 km course while intercepting the opponent as they vie for a first place finish. The best machine performance, the best pilots and the best teamwork are the only factors that can make them the winners.

Wolverine is a mutant, possessing animal-keen senses, enhanced physical capabilities, three retracting bone claws on each hand and a healing factor that allows him to recover from virtually any wound, disease or toxin at a accelerated rate.

In the midst of a war between the families of Demitri Maximoff and Morrigan Aensland for control of the Demon World, alien invader Pyron arrives on Earth and plans to take it over by taking out those who stand a chance of stopping him, namely the Darkstalkers. Meanwhile, dhampir Donovan Baine seeks to rid himself of the cursed blood which runs through his veins.

Two siblings - an idealistic teenage boy and his naïve younger sister - are forced to pilot an abandoned Jaeger across a hostile landscape in a desperate attempt to find their missing parents.

Hi Hi Puffy AmiYumi is an American-Japanese animated fantasy-comedy television series from Cartoon Network and TV Tokyo, produced by Renegade Animation and Cartoon Network Studios in Japan. The show was created by Sam Register, who also serves as the series' executive producer.According to Register, the target audience of the show is boys and girls from six to eleven years old. However, the show also has a following of fans of the real-life Ami Onuki and Yumi Yoshimura who make up the Japanese pop duo PUFFY, known as "Puffy AmiYumi" in North America. Register, a fan of the band, wished to spread its fame to other parts of the world and thus produced the cartoon.The series features the adventures of animated versions of the duo, who have been immensely popular in Japan since making their debut in 1996. The group now has its own U.S. albums, including a 2004 companion album to this program, and was known to viewers of Cartoon Network in the USA for performing the theme to the Teen Titans animated series.