GuessAnime.

1. Death Note

A shinigami, as a god of death, can kill any person—provided they see their victim's face and write their victim's name in a notebook called a Death Note. One day, Ryuk, bored by the shinigami lifestyle and interested in seeing how a human would use a Death Note, drops one into the human realm.

High school student and prodigy Light Yagami stumbles upon the Death Note and—since he deplores the state of the world—tests the deadly notebook by writing a criminal's name in it. When the criminal dies immediately following his experiment with the Death Note, Light is greatly surprised and quickly recognizes how devastating the power that has fallen into his hands could be.

With this divine capability, Light decides to extinguish all criminals in order to build a new world where crime does not exist and people worship him as a god. Police, however, quickly discover that a serial killer is targeting criminals and, consequently, try to apprehend the culprit. To do this, the Japanese investigators count on the assistance of the best detective in the world: a young and eccentric man known only by the name of L.

Death Note is finished and has 37 Episodes. It is also Known as: デスノート, DN

2. Hunter x Hunter (2011)

Hunter x Hunter is set in a world where Hunters exist to perform all manner of dangerous tasks like capturing criminals and bravely searching for lost treasures in uncharted territories. Twelve-year-old Gon Freecss is determined to become the best Hunter possible in hopes of finding his father, who was a Hunter himself and had long ago abandoned his young son. However, Gon soon realizes the path to achieving his goals is far more challenging than he could have ever imagined.

Along the way to becoming an official Hunter, Gon befriends the lively doctor-in-training Leorio, vengeful Kurapika, and rebellious ex-assassin Killua. To attain their own goals and desires, together the four of them take the Hunter Exam, notorious for its low success rate and high probability of death. Throughout their journey, Gon and his friends embark on an adventure that puts them through many hardships and struggles. They will meet a plethora of monsters, creatures, and characters—all while learning what being a Hunter truly means.

Hunter x Hunter (2011) is finished and has 148 Episodes. It is also Known as: HUNTER×HUNTER ハンターハンター, HUNTER×HUNTER ハンターハンター, HxH (2011), Hantā Hantā (2011)

3. Code Geass: Lelouch of the Rebellion

On August 10th of the year 2010, the Holy Empire of Britannia began a campaign of conquest, its sights set on Japan. Operations were completed in one month thanks to Britannia's deployment of new mobile humanoid armor vehicles dubbed Knightmare Frames. Japan's rights and identity were stripped away, the once proud nation is now referred to as Area 11. Its citizens, Elevens, are forced to scratch out a living while the Britannian aristocracy lives comfortably within their settlements. Pockets of resistance appear throughout Area 11, working towards independence for Japan.

Lelouch, an exiled Imperial Prince of Britannia posing as a student, finds himself in the heart of the ongoing conflict for the island nation. Through a chance meeting with a mysterious girl named C.C., Lelouch gains his Geass, the power of the king. Now endowed with absolute dominance over any person, Lelouch may finally realize his goal of bringing down Britannia from within!

Code Geass: Lelouch of the Rebellion is finished and has 25 Episodes. It is also Known as: Code Geass: Hangyaku no Lelouch, コードギアス 反逆のルルーシュ, Code Geass: Hangyaku no Lelouch

4. Code Geass: Lelouch of the Rebellion R2

One year has passed since the Black Rebellion, a failed uprising against the Holy Britannian Empire led by the masked vigilante Zero, who is now missing. At a loss without their revolutionary leader, Area 11's resistance group—the Black Knights—find themselves too powerless to combat the brutality inflicted upon the Elevens by Britannia, which has increased significantly in order to crush any hope of a future revolt.

Lelouch Lamperouge, having lost all memory of his double life, is living peacefully alongside his friends as a high school student at Ashford Academy. His former partner C.C., unable to accept this turn of events, takes it upon herself to remind him of his past purpose, hoping that the mastermind Zero will rise once again to finish what he started, in this thrilling conclusion to the series.

Code Geass: Lelouch of the Rebellion R2 is finished and has 25 Episodes. It is also Known as: Code Geass: Hangyaku no Lelouch R2, コードギアス 反逆のルルーシュ 続編, Code Geass: Hangyaku no Lelouch 2nd Season, Code Geass: Hangyaku no Lelouch Second Season

5. Mahoutsukai no Yome

Hatori Chise has lived a life full of neglect and abuse, devoid of anything resembling love. Far from the warmth of family, she has had her share of troubles and pitfalls. Just when all hope seems lost, a fateful encounter awaits her. When a man with the head of a beast, wielding strange powers, obtains her through a slave auction, Chise's life will never be the same again. The man is a "magus,"a sorcerer of great power, who decides to free Chise from the bonds of captivity. The magus then makes a bold statement: Chise will become his apprentice--and his bride!

The Ancient Magus' Bride is finished and has 24 Episodes. It is also Known as: 魔法使いの嫁, The Magician's Bride, Mahou Tsukai no Yome, Maho Yome, MahoYome, まほよめ

6. Kill la Kill

After the murder of her father, Ryuuko Matoi has been wandering the land in search of his killer. Following her only lead—the missing half of his invention, the Scissor Blade—she arrives at the prestigious Honnouji Academy, a high school unlike any other. The academy is ruled by the imposing and cold-hearted student council president Satsuki Kiryuuin alongside her powerful underlings, the Elite Four. In the school's brutally competitive hierarchy, Satsuki bestows upon those at the top special clothes called "Goku Uniforms," which grant the wearer unique superhuman abilities.

Thoroughly beaten in a fight against one of the students in uniform, Ryuuko retreats to her razed home where she stumbles across Senketsu, a rare and sentient "Kamui," or God Clothes. After coming into contact with Ryuuko's blood, Senketsu awakens, latching onto her and providing her with immense power. Now, armed with Senketsu and the Scissor Blade, Ryuuko makes a stand against the Elite Four, hoping to reach Satsuki and uncover the culprit behind her father's murder once and for all.

Kill la Kill is finished and has 24 Episodes. It is also Known as: キルラキル, KILL la KILL, KLK, Dressed to Kill, Kiru ra Kiru

7. Soul Eater

Death City is home to the famous Shibusen, a technical academy headed by the Shinigami–Lord Death himself. Its mission: to raise "Death Scythes" for the Shinigami to wield against the many evils of their fantastical world. These Death Scythes, however, are not made from physical weapons; rather, they are born from human hybrids who have the ability to transform their bodies into Demon Weapons, and only after they have consumed the souls of 99 evil beings and one witch's soul.

Soul Eater Evans, a Demon Scythe who only seems to care about what's cool, aims to become a Death Scythe with the help of his straight-laced wielder, or meister, Maka Albarn. The contrasting duo work and study alongside the hot headed Black☆Star and his caring weapon Tsubaki, as well as the Shinigami's own son, Death the Kid, an obsessive-compulsive dual wielder of twin pistols Patty and Liz.Soul Eater follows these students of Shibusen as they take on missions to collect souls and protect the city from the world's threats while working together under the snickering sun to become sounder in mind, body, and soul.

Soul Eater is finished and has 51 Episodes. It is also Known as: ソウルイーター, SOUL EATER

8. Fate/Zero

With the promise of granting any wish, the omnipotent Holy Grail triggered three wars in the past, each too cruel and fierce to leave a victor. In spite of that, the wealthy Einzbern family is confident that the Fourth Holy Grail War will be different; namely, with a vessel of the Holy Grail now in their grasp. Solely for this reason, the much hated "Magus Killer" Kiritsugu Emiya is hired by the Einzberns, with marriage to their only daughter Irisviel as binding contract.

Kiritsugu now stands at the center of a cutthroat game of survival, facing off against six other participants, each armed with an ancient familiar, and fueled by unique desires and ideals. Accompanied by his own familiar, Saber, the notorious mercenary soon finds his greatest opponent in Kirei Kotomine, a priest who seeks salvation from the emptiness within himself in pursuit of Kiritsugu.

Based on the light novel written by Gen Urobuchi, Fate/Zero depicts the events of the Fourth Holy Grail War—10 years prior to Fate/stay night. Witness a battle royale in which no one is guaranteed to survive.

Fate/Zero is finished and has 13 Episodes. It is also Known as: フェイト/ゼロ, Fate/Zero

9. Hunter x Hunter

Hunters are specialized in a wide variety of fields, ranging from treasure hunting to cooking. They have access to otherwise unavailable funds and information that allow them to pursue their dreams and interests. However, being a hunter is a special privilege, only attained by taking a deadly exam with an extremely low success rate.

Gon Freecss, a 12-year-old boy with the hope of finding his missing father, sets out on a quest to take the Hunter Exam. Along the way, he picks up three companions who also aim to take the dangerous test: the revenge-seeking Kurapika, aspiring doctor Leorio Paladiknight, and a mischievous child the same age as Gon, Killua Zoldyck.Hunter x Hunter is a classic shounen that follows the story of four aspiring hunters as they embark on a perilous adventure, fighting for their dreams while defying the odds.

Hunter x Hunter is finished and has 62 Episodes. It is also Known as: HUNTER×HUNTER（ハンター×ハンター）, HxH, HUNTER×HUNTER（ハンター×ハンター）, Hantā Hantā

10. Yu☆Gi☆Oh! Duel Monsters

Legend says that the enigmatic Millennium Puzzle will grant one wish to whoever deciphers its ancient secrets. Upon solving it, high school student Yuugi Mutou unleashes "another Yuugi," a peculiar presence contained inside. Now, whenever he is faced with a dilemma, this mysterious alter ego makes an appearance and aids him in his troubles.

Wishing to unravel the mystery behind this strange spirit, Yuugi and his companions find themselves competing with several opponents in "Duel Monsters," a challenging card game used by people seeking to steal the Millennium Puzzle in a desperate attempt to harness the great power within. As the questions pile on, it is not long before they figure out that there is more than pride on the line in these duels.

Yu-Gi-Oh! is finished and has 224 Episodes. It is also Known as: 遊☆戯☆王　デュエルモンスターズ, Yugioh, Yu-Gi-Oh!, Yu-Gi-Oh!: Duel Monsters, Yugioh: Duel Monsters, Yu-Gi-Oh! Duel Monsters, Yuu Gi Ou!

11. Toaru Majutsu no Index

Academy City, Japan, is at the forefront of science. Besides being 30 years ahead of the world technologically, more than three-fourths of this peculiar city's population consists of students developing their psychic abilities as espers in various institutions. Among these students is Touma Kamijou, a high school boy with the lowest psychic rank of zero, but with a mysterious power no scientist can understand: "Imagine Breaker," which allows him to negate other supernatural abilities.

This, however, doesn't affect Kamijou's life in the least as he plays his role as a regular teenager; that is, until he meets the strange Index Librorum Prohibitorum, a young girl who has memorized the entire forbidden grimoires, and now a dangerous organization is hunting Index down. With several magicians looking to harm the girl, Kamijou will defend his new companion at all costs as he discovers a strange new realm of the supernatural.

A Certain Magical Index is finished and has 24 Episodes. It is also Known as: とある魔術の禁書目録, Toaru Majutsu no Kinsho Mokuroku

12. Darker than Black

It has been 10 years since Heaven's Gate appeared in South America and Hell's Gate appeared in Japan, veiling the once familiar night sky with an oppressive skyscape. Their purposes unknown, these Gates are spaces in which the very laws of physics are ignored. With the appearance of the Gates emerged Contractors, who, in exchange for their humanity, are granted supernatural abilities.

In the Japanese city surrounding Hell’s Gate, Section 4 Chief Misaki Kirihara finds herself at odds with an infamous Contractor codenamed Hei. Called "Black Reaper" in the underground world, Hei, like his associates, undertakes missions for the mysterious and ruthless Syndicate while slowly peeling back the dark layers covering a nefarious plot that threatens the very existence of Contractors.

From the mind of Tensai Okamura comes a sci-fi thriller taking the form of a subtle exposé on a war in which political positions and justice have no sway—a war waged exclusively in the shadows.

Darker than Black is finished and has 25 Episodes. It is also Known as: Darker than Black: Kuro no Keiyakusha, Darker than BLACK -黒の契約者-, DTB

13. Fate/stay night

After a mysterious inferno kills his family, Shirou is saved and adopted by Kiritsugu Emiya, who teaches him the ways of magic and justice.

One night, years after Kiritsugu's death, Shirou is cleaning at school, when he finds himself caught in the middle of a deadly encounter between two superhumans known as Servants. During his attempt to escape, the boy is caught by one of the Servants and receives a life-threatening injury. Miraculously, he survives, but the same Servant returns to finish what he started. In desperation, Shirou summons a Servant of his own, a knight named Saber. The two must now participate in the Fifth Holy Grail War, a battle royale of seven Servants and the mages who summoned them, with the grand prize being none other than the omnipotent Holy Grail itself.Fate/stay night follows Shirou as he struggles to find the fine line between a hero and a killer, his ideals clashing with the harsh reality around him. Will the boy become a hero like his foster father, or die trying?

Fate/stay night is finished and has 24 Episodes. It is also Known as: Fate/stay night, Fate - Stay Night

14. Urusei Yatsura

Earth faces a huge crisis. Aliens want to invade the planet. Humanity's only hope rests with Ataru Moroboshi, who was chosen to represent Earth in a one-on-one duel with the aliens' chosen warrior. There is only one problem with this plan. Ataru is a womanizing, stupid loser. How in the world can he hope to succeed?

Selected to fight for the aliens' right to take over Earth is Lum, their curvaceous, bikini-clad princess. Luckily for Ataru, the duel takes the form of a game of tag. All he has to do to win is grab Lum's horns. Not so luckily for him is the fact that she can fly and, being a normal human, he most definitely cannot. Just when it looks like Ataru is destined to fail, his girlfriend Shinobu makes him a promise: she will marry him if he can win.

The encouragement is enough to motivate Ataru to succeed. But just when it looks like Earth is saved, he faces another problem. Lum misinterprets something he said and thinks that they are now married! Urusei Yatsura follows the unlikely relationship between the lecherous Ataru, the beautiful alien Lum, and all of the strange people they meet along the way.

Urusei Yatsura is finished and has 195 Episodes. It is also Known as: うる星やつら, Lamu, Lum, Those Obnoxious Aliens

15. FLCL

Nothing interesting happens in Naota's life since his brother left for America, leaving him with his grandfather and father in their boring little town. On his way home with Mamimi—his brother's ex-girlfriend—a pink-haired, crazy woman riding a Vespa, named Haruko, suddenly slams into him, kisses him, and then bashes him in the head with her guitar before riding off. The next thing he knows, the crazy girl is working as his housekeeper, two robots sprout from his forehead to do battle, and the surviving one starts living with him as well. I think it's fair to say that Naota has parted ways with his old mundane life.FLCL is a kooky coming-of-age story with surprisingly deep undertones as the twelve-year-old Naota develops through the wild antics of Haruko and matures along the way into adulthood.

FLCL is finished and has 6 Episodes. It is also Known as: フリクリ, Fooly Cooly, Furi Kuri

16. Majo no Takkyuubin

Kiki, a 13-year-old witch-in-training, must spend a year living on her own in a distant town in order to become a full-fledged witch. Leaving her family and friends, Kiki undertakes this tradition when she flies out into the open world atop her broomstick with her black cat Jiji.

As she settles down in the coastal town of Koriko, Kiki struggles to adapt and ends up wandering the streets with no place to stay—until she encounters Osono, who offers Kiki boarding in exchange for making deliveries for her small bakery. Before long, Kiki decides to open her own courier service by broomstick, beginning her journey to independence. In attempting to find her place among the townsfolk, Kiki brings with her exciting new experiences and comes to understand the true meaning of responsibility.

Kiki's Delivery Service is a Movie. It is also Known as: 魔女の宅急便, Witch's Express Delivery

17. Nagi no Asukara

Long ago, all humans lived beneath the sea. However, some people preferred the surface and abandoned living underwater permanently. As a consequence, they were stripped of their god-given protection called "Ena" which allowed them to breathe underwater. Over time, the rift between the denizens of the sea and of the surface widened, although contact between the two peoples still existed.Nagi no Asukara follows the story of Hikari Sakishima and Manaka Mukaido, along with their childhood friends Chisaki Hiradaira and Kaname Isaki, who are forced to leave the sea and attend a school on the surface. There, the group also meets Tsumugu Kihara, a fellow student and fisherman who loves the sea.

Hikari and his friends' lives are bound to change as they have to deal with the deep-seated hatred and discrimination between the people of sea and of the surface, the storms in their personal lives, as well as an impending tempest which may spell doom for all who dwell on the surface.

A Lull in the Sea is finished and has 26 Episodes. It is also Known as: 凪のあすから, Nagi no Asu Kara, Earth color of a calm, Nagiasu

18. Tenchi Muyou! Ryououki 2

This OVA series gives the viewer more in-depth details on Sasami, Washu, and Ryo-ohki, as well as introducing members of the Juraian royal family.

Tenchi Muyo! Ryo-Ohki 2 is finished and has 6 Episodes. It is also Known as: 天地無用！魎皇鬼, Tenchi Muyou! Ryououki (1994)

19. Bakuten Shoot Beyblade

Thirteen-year-old Tyson Granger , along with his fellow teammates, Kai Hiwatari, Max Tate , and Ray Kon , strive to become the greatest Beybladers in the world. With the technical help of the team's resident genius, Kenny , and with the powerful strength of their BitBeasts, the Bladebreakers armed with their tops attempt to reach their goal.

Beyblade is finished and has 51 Episodes. It is also Known as: 爆転シュート　ベイブレード, Bakuten Shoot Beyblade