1. Fullmetal Alchemist (鋼の錬金術師)
Two young brothers are raised as alchemists, but when they are severely injured trying to perform a forbidden act, they begin searching for the one thing that can save them; the fabled philosopher's stone.
It has an average vote of 8.2 on TMDB.
2. Death Note (DEATH NOTE)
Light Yagami is an ace student with great prospects—and he’s bored out of his mind. But all that changes when he finds the Death Note, a notebook dropped by a rogue Shinigami death god. Any human whose name is written in the notebook dies, and Light has vowed to use the power of the Death Note to rid the world of evil. But will Light succeed in his noble goal, or will the Death Note turn him into the very thing he fights against?
It has an average vote of 8.638 on TMDB.
3. Hunter x Hunter (HUNTER×HUNTER)
Twelve-year-old Gon Freecss one day discovers that the father he had always been told was dead was alive. His Father, Ging, is a Hunter — a member of society's elite with a license to go anywhere or do almost anything. Gon, determined to follow in his father's footsteps, decides to take the Hunter Examination and eventually find his father to prove himself as a Hunter in his own right. But on the way, he learns that there is more to becoming a Hunter than previously thought, and the challenges that he must face are considered the toughest in the world.
It has an average vote of 8.6 on TMDB.
4. Steins;Gate (Steins;Gate)
A group of friends have customized their microwave so that it can send text messages to the past. As they perform different experiments, an organization named SERN who has been doing their own research on time travel tracks them down and now the characters have to find a way to avoid being captured by them.
It has an average vote of 8.453 on TMDB.
5. Code Geass: Lelouch of the Rebellion (コードギアス 反逆のルルーシュ)
Japan has been invaded and conquered by the Britannian Empire. Japan is now known as Area 11 and its citizens known as Elevens. The Britannian Empire takes away Japan's autonomous power and imposes its rule through the use of Knightmares. The Empire's rule has never faltered, but cracks have begun to show...
It has an average vote of 8.4 on TMDB.
6. Cowboy Bebop (カウボーイビバップ)
In 2071, roughly fifty years after an accident with a hyperspace gateway made the Earth almost uninhabitable, humanity has colonized most of the rocky planets and moons of the Solar System. Amid a rising crime rate, the Inter Solar System Police set up a legalized contract system, in which registered bounty hunters, also referred to as "Cowboys", chase criminals and bring them in alive in return for a reward.
It has an average vote of 8.5 on TMDB.
7. FLCL (フリクリ)
Naota Nandaba is an ordinary sixth grader living in a city where nothing amazing ever seems to happen. After his brother Tasuku leaves town to play baseball in America, Naota takes it upon himself to look after everything Tasuku left behind—from his top bunk bed to his ex-girlfriend Mamimi Samejima, who hasn't stopped clinging to Naota since Tasuku left.
It has an average vote of 8 on TMDB.
8. One-Punch Man (ワンパンマン)
Saitama is a hero who only became a hero for fun. After three years of “special” training, though, he’s become so strong that he’s practically invincible. In fact, he’s too strong — even his mightiest opponents are taken out with a single punch, and it turns out that being devastatingly powerful is actually kind of a bore. With his passion for being a hero lost along with his hair, yet still faced with new enemies every day, how much longer can he keep it going?
It has an average vote of 8.4 on TMDB.
9. Attack on Titan (進撃の巨人)
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.
It has an average vote of 8.7 on TMDB.
10. No Game No Life (ノーゲーム･ノーライフ)
This is a surreal comedy that follows Sora and Shiro, shut-in NEET siblings and the online gamer duo behind the legendary username "Kuuhaku." They view the real world as just another lousy game; however, a strange e-mail challenging them to a chess match changes everything—the brother and sister are plunged into an otherworldly realm where they meet Tet, the God of Games.</p><p></p><p>The mysterious god welcomes the two to Disboard, a world where all forms of conflict are settled through high-stake games. This system works thanks to a fundamental rule wherein each party must wager something they deem to be of equal value to the other party's wager. In this strange land where the very idea of humanity is reduced to child’s play, the indifferent genius gamer duo of Sora and Shiro have finally found a real reason to keep playing games: to unite the sixteen races of Disboard, defeat Tet, and become the gods of this new, gaming-is-everything world.
It has an average vote of 8.169 on TMDB.
11. Neon Genesis Evangelion (新世紀エヴァンゲリオン)
At the turn of the century, the Angels returned to Earth, seeking to wipe out humanity in an apocalyptic fury. Devastated, mankind's last remnants moved underground to wait for the day when the Angels would come back to finish the job. Fifteen years later, that day has come... but this time, humanity is ready to fight back with terrifying bio-mechanical weapons known as the Evangelions. Watch as Shinji, Rei, Asuka and the rest of the mysterious shadow agency Nerv battle to save earth from total annihilation.
It has an average vote of 8.6 on TMDB.
12. Demon Slayer: Kimetsu no Yaiba (鬼滅の刃)
It is the Taisho Period in Japan. Tanjiro, a kindhearted boy who sells charcoal for a living, finds his family slaughtered by a demon. To make matters worse, his younger sister Nezuko, the sole survivor, has been transformed into a demon herself. Though devastated by this grim reality, Tanjiro resolves to become a “demon slayer” so that he can turn his sister back into a human, and kill the demon that massacred his family.
It has an average vote of 8.7 on TMDB.
13. Saint Seiya (聖闘士星矢)
Ages ago, the goddess Athena was served by fighters called Saints who channeled the power of the Cosmos within them. Now a youth named Seiya has trained to become a Saint himself by earning the mystical Cloth of Pegasus. He is joined by other Saints with Cloths of their own to fight for Athena.
It has an average vote of 8.489 on TMDB.
14. Avatar: The Last Airbender
In a war-torn world of elemental magic, a young boy reawakens to undertake a dangerous mystic quest to fulfill his destiny as the Avatar, and bring peace to the world.
It has an average vote of 8.725 on TMDB.
15. Black Clover (ブラッククローバー)
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.
It has an average vote of 8.5 on TMDB.
16. The Seven Deadly Sins (七つの大罪)
The “Seven Deadly Sins”—a group of evil knights who conspired to overthrow the kingdom of Britannia—were said to have been eradicated by the Holy Knights, although some claim that they still live. Ten years later, the Holy Knights have staged a Coup d'état and assassinated the king, becoming the new, tyrannical rulers of the kingdom. Elizabeth, the king's only daughter, sets out on a journey to find the “Seven Deadly Sins,” and to enlist their help in taking back the kingdom.
It has an average vote of 8.448 on TMDB.
17. Great Teacher Onizuka (グレート・ティーチャー・オニヅカ)
About Eikichi Onizuka, a 22-year-old ex-gangster member and a virgin. He has one ambition that no one ever expected from him. His solely life purpose is to become the greatest high school teacher ever.
It has an average vote of 8.3 on TMDB.
18. Welcome to the N.H.K. (NHKにようこそ!)
Sato's life – or what's left of it – is a paranoid mess of conspiracy theories and social anxieties. He's terrified of the outside world; his apartment is overflowing with the remnants of cheap take-out food; and his retinas have been permanently scarred by a steady diet of internet porn. But maybe it's not all his fault. After all, the nefarious N.H.K. is out there, and they’re determined to turn society's fringe-dwellers into a brainwashed lot of jobless, hopeless, futureless recluses.</p><p></p><p>Enter Misaki – a mysterious girl-next-door type who is Sato's last chance to beat-down his inner demons and venture out into the light of day. She's ready to help him overcome his crippling phobias, but Sato would rather cower in his existential foxhole and pretend to work on the demo for his virtual sex game.</p><p></p><p>He’s afraid to face the world. She's strangely desperate to fix a total stranger. Maybe together they can be normal.
It has an average vote of 8.6 on TMDB.
19. Louie
Louis C.K. stars as a fictionalized version of himself; a comedian and newly divorced father raising his two daughters in New York City.
It has an average vote of 7.8 on TMDB.
20. Ace of Diamond (ダイヤのA)
Eijun Sawamura is a pitcher who joins an elite school with a brilliant catcher named Kazuya Miyuki. Together with the rest of the team, they strive for Japan's storied Koushien championships through hard work and determination.
It has an average vote of 7.8 on TMDB.
