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1. One Piece

Gol D. Roger was known as the "Pirate King," the strongest and most infamous being to have sailed the Grand Line. The capture and death of Roger by the World Government brought a change throughout the world. His last words before his death revealed the existence of the greatest treasure in the world, One Piece. It was this revelation that brought about the Grand Age of Pirates, men who dreamed of finding One Piece—which promises an unlimited amount of riches and fame—and quite possibly the pinnacle of glory and the title of the Pirate King.

Enter Monkey D. Luffy, a 17-year-old boy who defies your standard definition of a pirate. Rather than the popular persona of a wicked, hardened, toothless pirate ransacking villages for fun, Luffy’s reason for being a pirate is one of pure wonder: the thought of an exciting adventure that leads him to intriguing people and ultimately, the promised treasure. Following in the footsteps of his childhood hero, Luffy and his crew travel across the Grand Line, experiencing crazy adventures, unveiling dark mysteries and battling strong enemies, all in order to reach the most coveted of all fortunes—One Piece.

One Piece is currently airing . It is also Known as: ONE PIECE, ワンピース

2. Ninja to Koroshiya no Futarigurashi

On the way home from school one day, Konoha Koga rescues Satoko Kusagakure, a ninja who escaped her village. Soon, pursuers from the village show up in search of Satoko only to be deftly dealt with by Konoha. As it turns out, the unassuming high schooler is actually an assassin. Thus, the potentially cutthroat cohabitation of a ninja and an assassin begins!

A Ninja and an Assassin Under One Roof is finished and has 12 Episodes. It is also Known as: 忍者と殺し屋のふたりぐらし, Ninja to Koroshiya no Futarigurashi

3. Saiki Kusuo no Ψ-nan (TV)

To the average person, psychic abilities might seem a blessing; for Kusuo Saiki, however, this couldn't be further from the truth. Gifted with a wide assortment of supernatural abilities ranging from telepathy to x-ray vision, he finds this so-called blessing to be nothing but a curse. As all the inconveniences his powers cause constantly pile up, all Kusuo aims for is an ordinary, hassle-free life—a life where ignorance is bliss.

Unfortunately, the life of a psychic is far from quiet. Though Kusuo tries to stay out of the spotlight by keeping his powers a secret from his classmates, he ends up inadvertently attracting the attention of many odd characters, such as the empty-headed Riki Nendou and the delusional Shun Kaidou. Forced to deal with the craziness of the people around him, Kusuo comes to learn that the ordinary life he has been striving for is a lot more difficult to achieve than expected.

Note: Originally aired as 120 5min episodes that were later compiled into 24 normal lenght episodes

The Disastrous Life of Saiki K. is finished and has 120 Episodes. It is also Known as: 斉木楠雄のΨ難, Saiki Kusuo no Psi Nan

4. Tengen Toppa Gurren Lagann

Simon and Kamina were born and raised in a deep, underground village, hidden from the fabled surface. Kamina is a free-spirited loose cannon bent on making a name for himself, while Simon is a timid young boy with no real aspirations. One day while excavating the earth, Simon stumbles upon a mysterious object that turns out to be the ignition key to an ancient artifact of war, which the duo dubs Lagann. Using their new weapon, Simon and Kamina fend off a surprise attack from the surface with the help of Yoko Littner, a hot-blooded redhead wielding a massive gun who wanders the world above.

In the aftermath of the battle, the sky is now in plain view, prompting Simon and Kamina to set off on a journey alongside Yoko to explore the wastelands of the surface. Soon, they join the fight against the "Beastmen," humanoid creatures that terrorize the remnants of humanity in powerful robots called "Gunmen." Although they face some challenges and setbacks, the trio bravely fights these new enemies alongside other survivors to reclaim the surface, while slowly unraveling a galaxy-sized mystery.

Gurren Lagann is finished and has 27 Episodes. It is also Known as: 天元突破グレンラガン, Tengen Toppa Gurren-Lagann, Making Break-Through Gurren Lagann, Heavenly Breakthrough Gurren Lagann, TTGL, Gurren Laggan

5. 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

6. Saiki Kusuo no Ψ-nan (TV) 2

Sequel to Saiki Kusuo no Ψ-nan .

The Disastrous Life of Saiki K. 2 is finished and has 24 Episodes. It is also Known as: 斉木楠雄のΨ難 2, Saiki Kusuo no Psi Nan 2

7. Durarara!!

In Tokyo's downtown district of Ikebukuro, amidst many strange rumors and warnings of anonymous gangs and dangerous occupants, one urban legend stands out above the rest—the existence of a headless "Black Rider" who is said to be seen driving a jet-black motorcycle through the city streets.

Mikado Ryuugamine has always longed for the excitement of the city life, and an invitation from a childhood friend convinces him to move to Tokyo. Witnessing the Black Rider on his first day in the city, his wishes already seem to have been granted. But as supernatural events begin to occur, ordinary citizens like himself, along with Ikebukuro's most colorful inhabitants, are mixed up in the commotion breaking out in their city.

Durarara!! is finished and has 24 Episodes. It is also Known as: デュラララ!!, Dhurarara!!, Dyurarara!!, Dulalala!!, Dullalala!!, DRRR!!

8. Sakurasou no Pet na Kanojo

When abandoned kittens and his good conscience force second year Sorata Kanda to move into Suimei High School’s infamous Sakura Hall, the satellite dorm and its eccentric, misfit residents turn his life upside down. The decidedly average Sorata finds it difficult to fit in with the bizarre collection of dorm residents like Misaki, an energetic animator; Jin, a playwright playboy; Ryuunosuke, a reclusive programmer; and Chihiro, the dorm manager, art teacher, and party girl.

Sorata's friend Nanami, a second year student and aspiring voice actress, pushes him to find new owners for the many cats so that he can quickly move back into the regular dorms. However, his desire to escape Sakura Hall wavers when the pet-like and infantile second year Mashiro Shiina, a world-class artistic savant looking to become a mangaka, transfers in during the spring trimester and quickly latches onto him.

Supported by each other's quirks, Sorata and Mashiro come out of their shells and trigger change in the lives of those around them. Based on the light novel series of the same name, Sakurasou no Pet na Kanojo explores the fine threads connecting talent, hard work, romance, and friendship with its ensemble cast.

The Pet Girl of Sakurasou is finished and has 24 Episodes. It is also Known as: さくら荘のペットな彼女, Sakura-sou no Pet na Kanojo

9. Helck

A certain country in the demon world. The Demon King was defeated by the hands of one of the heroes, and a competition was held for the title of the New Demon King. The Imperial Four Heavenly Kings Vermilio, who is in charge of the tournament, is furious at the participation of the human hero Helck, who is supposed to be her enemy. After receiving news of the fall of the castle of Urum before the final, Vermilio sets out to retake Urum Castle with Helck and other finalists. With a smile, Helck says, "Let's destroy humans." Are those words true? The truth behind the smile is...

Notes:

・The first and second episode premiered at Anime Expo 2023 on July 1.

Helck is finished and has 24 Episodes. It is also Known as: ヘルク, Helck

10. Shikanoko Nokonoko Koshitantan

Koshi Torako has everyone fooled. Her classmates see her as the perfect honor student, unaware of her secret delinquent past. But her new picturesque school life is thrown into chaos when she bumps into Shikanoko Noko, a girl with antlers! Mayhem seems to follow this strange doe-eyed girl. Who, or what, is she?

Note: Each episode streamed 4 days early on ABEMA. The original TV broadcast started on July 7th, 2024.

My Deer Friend Nokotan is finished and has 12 Episodes. It is also Known as: しかのこのこのここしたんたん, Shikanoko Nokonoko Koshitantan

11. Yuusha ga Shinda!

Touka is just your average farmer in the village of Cheza. While he daydreams about being a hero and getting the girl, the real hero, Sion, is out battling demons that threaten to invade the world! But one day, Touka accidentally kills the hero…?! With the Legendary Hero dead, who’s going to save the world now?! Touka quickly buries Sion’s body to hide the evidence, but wakes up the next day to discover he is no longer in his own body…!!

The Legendary Hero Is Dead! is finished and has 12 Episodes. It is also Known as: 勇者が死んだ！, Yuusha ga Shinda!

12. Sakigake!! Cromartie Koukou

Takashi Kamiyama is your typical mild-mannered high school student—polite, aloof, and pacifistic, with a slightly above-average IQ. But would your average high school student really enroll himself at the infamous Cromartie High School, known as a breeding ground for the toughest delinquents out there?

Apparently so, as that is exactly what Takashi does, though for reasons he'd rather leave unmentioned. However, one thing is for sure: the "hard-boiled rabbit in a den full of hungry lions" is never going to have another dull day. And how could he, now that he's surrounded by mohawked punks, obnoxious robots, and... gorillas? And was that Freddie Mercury riding a horse down the corridor? Follow Takashi as he earnestly dedicates his new high school life to better his school's reputation while his classmates are hellbent on wreaking havoc.

Cromartie High School is finished and has 26 Episodes. It is also Known as: 魁!! クロマティ高校, Sakigake!! Cromartie Koukou

13. Lucky☆Star

Lucky☆Star follows the daily lives of four cute high school girls—Konata Izumi, the lazy otaku; the Hiiragi twins, Tsukasa and Kagami ; and the smart and well-mannered Miyuki Takara.

As they go about their lives at school and beyond, they develop their eccentric and lively friendship and making humorous observations about the world around them. Be it Japanese tradition, the intricacies of otaku culture, academics, or the correct way of preparing and eating various foods—no subject is safe from their musings.

Lucky☆Star is finished and has 24 Episodes. It is also Known as: らき☆すた, Lucky Star

14. Mononoke: Karakasa

In the chambers of the Edo harem, two newcomers uncover political intrigue, rivalry, and a vengeful spirit only one traveling medicine seller can vanquish.

Mononoke The Movie: The Phantom in the Rain is a Movie. It is also Known as: モノノ怪 唐傘, Mononoke: The Movie, Mononoke: Paper Umbrella, Mononoke Movie, 劇場版 モノノ怪

15. Space☆Dandy

The universe is a mysterious and strange place, full of even stranger and more mysterious aliens. Dandy's job is to hunt down unclassified aliens and register them for a reward. It sounds easy enough, but something weird always seems to happen along the way, like chance meetings with zombies, mystical ramen chefs, and adorable orphans. Hunting down aliens may not be easy, but it's definitely never boring.

With the help of his sidekicks, the adorable robot vacuum QT and cat-like alien Meow, and his slightly-used ship the Aloha Oe, Dandy roams the galaxy searching for new alien species. What he usually finds, however, is adventure, danger, and romance, and no two journeys are ever the same. This is Space☆Dandy, baby!

Space Dandy is finished and has 13 Episodes. It is also Known as: スペース☆ダンディ, Space☆Dandy

16. Baka to Test to Shoukanjuu

The story centers around Akihisa Yoshii, the "baka" of the title. His academy rigidly divides up the student body into classes based on the results of tests. The prodigies are in the A class with reclining seats complete with air conditioning, but Akihisa is in F class, the lowest rung of the school ladder which is furnished only with low, decrepit tables and worn-out straw tatami mats. A girl named Mizuki Himeji is actually one of the smartest girls in Akihisa's sophomore year, but she had a fever on test day and was pigeonholed into the F class. Besides Mizuki , the F class also has Yuuji Sakamoto, the class president who has been Akihisa's friend and partner-in-crime since the freshman year.

The school happens to have developed experiments to summon fantasy creatures, and Akihisa decides to rally F class to take on the higher-tiered classes and seize their perks. The F class uses the summoned creatures in an all-out battle for school supremacy.

Baka & Test - Summon the Beasts is finished and has 13 Episodes. It is also Known as: バカとテストと召喚獣, The Idiot, the Tests, and the Summoned Creatures, Baka to Test to Shokanju, BakaTest, The Idiot, the Tests, and the Summoned Creatures

17. Akiba Maid Sensou

Akihabara is the center of the universe for the coolest hobbies and quirkiest amusements. In the spring of 1999, bright-eyed Nagomi Wahira moves there with dreams of joining a maid café. She quickly dons an apron at café Ton Tokoton, AKA the Pig Hut. But adjusting to life in bustling Akihabara isn’t as easy as serving tea and delighting customers. Paired with the dour Ranko who never seems to smile, Nagomi must do her best to elevate the Pig Hut over all other maid cafés vying for top ranking. Along the way she’ll slice out a place for herself amid the frills and thrills of life at the Pig Hut. Just when Nagomi’s dreams are within her grasp, she discovers not everything is as it seems amid the maid cafés of Akihabara.

Akiba Maid War is finished and has 12 Episodes. It is also Known as: アキバ冥途戦争, Akiba Maid Sensou

18. Rokujouma no Shinryakusha!? (TV)

After his father is transferred away for work, Koutarou must find a cheap place to live by himself while attending high school. He thinks that he's found just the place: Room 106 at Corona House. It's a small apartment, but it's only 5,000 yen a month rent, which is an impossibly cheap price! Add in the fact that he has a beautiful landlady and he thinks that he has it made－ at least until he starts to get some unexpected visitors.

One night Koutarou is visited by various girls, including a ghost named Sanae, a magical girl named Yurika, a girl who lives underground named Kiriha, and a princess from outer space named Theiamillis. All four of them claim that they need to have his apartment for their own reasons and thus need him to leave immediately. But he's not willing to give up his cheap apartment without a fight!

Before things can get too out of control, the landlady forces everyone to sign an agreement which states that they will all figure out who gets the apartment in a peaceful manner. Will Koutarou be forced out of his home before he can even finish putting his things away or will he be able to send his unwanted guests packing?

Invaders of the Rokujyoma!? is finished and has 12 Episodes. It is also Known as: 六畳間の侵略者！？, Rokujouma no Shinryakusha!?

19. Okusama ga Seitokaichou!

Hayato Izumi is running for student council president. He's studious, responsible, down to earth...and completely outmatched by his rival, Ui Wakana. Ui wins in a landslide after promising comprehensive sex education, free condoms, and other exciting reforms. Bloodied but not discouraged, Hayato licks his wounds and settles for vice president.

Then Ui moves in with him. As it turns out, their parents made a drunken promise decades ago that their children would one day marry. Ui and Hayato must now balance school life with matrimony, keeping their relationship secret from a prudish student body and learning to live with each other. Can they keep the student council in line and find happiness together? Find out in Okusama ga Seitokaichou!

My Wife is the Student Council President! is finished and has 12 Episodes. It is also Known as: おくさまが生徒会長！, Oku-sama ga Seito Kaichou!