GuessAnime.

1. Ansatsu Kyoushitsu

When a mysterious creature chops the moon down to a permanent crescent, the students of class 3-E of Kunugigaoka Middle School find themselves confronted with an enormous task: assassinate the creature responsible for the disaster before Earth suffers a similar fate. However, the monster, dubbed Koro-sensei , is able to fly at speeds of up to Mach 20, which he demonstrates freely, leaving any attempt to subdue him in his extraterrestrial dust. Furthermore, the misfits of 3-E soon find that the strange, tentacled beast is more than just indomitable—he is the best teacher they have ever had!

Adapted from the humorous hit manga by Yuusei Matsui, Ansatsu Kyoushitsu tells the story of these junior high pupils as they polish their assassination skills and grow in order to stand strong against the oppressive school system, their own life problems, and one day, Koro-sensei.

Assassination Classroom is finished and has 22 Episodes. It is also Known as: 暗殺教室, Ansatsu Kyoushitsu

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. SAKAMOTO DAYS

When Sakamoto meets Aoi, the convenience store clerk, it’s love at first sight — and just like that, he retires.

Sakamoto gets married, has a daughter, opens a mom-and-pop store in a quiet town, and completely transforms … into a plus-size man. To ensure a peaceful life with his beloved family, the legendary ex–hit man bands together with comrades to face off against the looming threat of assassins.

Note: The series is streaming a week in advance on Netflix Japan starting with episode 2 released alongside episode 1.

Sakamoto Days is finished and has 11 Episodes. It is also Known as: サカモトデイズ, SAKAMOTO DAYS

4. SPY×FAMILY

Everyone has a part of themselves they cannot show to anyone else.

At a time when all nations of the world were involved in a fierce war of information happening behind closed doors, Ostania and Westalis had been in a state of cold war against one another for decades. The Westalis Intelligence Services' Eastern-Focused Division sends their most talented spy, "Twilight," on a top-secret mission to investigate the movements of Donovan Desmond, the chairman of Ostania's National Unity Party, who is threatening peace efforts between the two nations.

This mission is known as "Operation Strix." It consists of "putting together a family in one week in order to infiltrate social gatherings organized by the elite school that Desmond's son attends."

"Twilight" takes on the identity of psychiatrist Loid Forger and starts looking for family members. But Anya, the daughter he adopts, turns out to have the ability to read people's minds, while his wife, Yor, is an assassin! With it being in each of their own interests to keep these facts hidden, they start living together while concealing their true identities from one another.

World peace is now in the hands of this brand-new family as they embark on an adventure full of surprises.

SPY x FAMILY is finished and has 12 Episodes. It is also Known as: SPY×FAMILY, SxF, 스파이 패밀리, SPY×FAMILY: WJ Special Extra Mission!!, 间谍过家家

5. SAKAMOTO DAYS Part 2

The second part of SAKAMOTO DAYS.

Sakamoto Days Part 2 is upcoming . It is also Known as: SAKAMOTO DAYS 第２クール, サカモト デイズ 2クール

6. Hotel Inhumans

The most exquisite hotels in the world have certain standards: the finest food, the most sublime comfort, captivating entertainment, the latest weapons, reliable identity fabrication, and untraceable corpse disposal.

The name of this place where the people who have “forgotten their humanity” visit is “Hotel Inhumans.” The hitmen guests are welcomed by the concierges who never say "no."

Hotel Inhumans is currently airing and it will have 13 Episodes. It is also Known as: ホテル・インヒューマンズ, Hotel Inhumans

7. Koroshi Ai

The silent and stoic Chateau Dankworth is a bounty hunter. Her target: Son Ryang-ha, a notorious killer known for killing 18 high-class officials in a single night. To this day, his murders remain swift, efficient, and bloody. However, after Son Ryang-ha overpowers Chateau in their first encounter, he reveals his own intentions: he too is after her, aiming for her heart.

Son Ryang-ha's attempts to catch her eye are quite unique, to say the least. He offers gifts to her in the form of her current targets, tied up and battered, and will do anything to spend more time together. Reluctantly, Chateau goes along with this act, and so begins the cat-and-mouse game of love between two killers.

Love of Kill is finished and has 12 Episodes. It is also Known as: 殺し愛, Koroshi Ai

8. SPY x FAMILY Part 2

The second half of SPYxFAMILY.

With Anya Forger successfully enrolled at the renowned Eden Academy, Operation Strix advances to its second phase. To investigate Ostanian politician Donovan Desmond, Anya must either befriend his son Damian or collect eight Stella Stars to become an Imperial Scholar. Fortunately, Anya has already acquired her first star. In celebration, her adoptive father, Loid, decides to fulfill her wish to adopt a dog.

During their canine search, Loid receives new orders from his superiors, who have found that a band of Berlint University students is plotting to assassinate Westalis' Minister Brantz using bombs worn by trained dogs. While Loid tries to stop their plans, Anya stumbles upon the terrorists' base of operations. There, she befriends a kindhearted, clairvoyant dog who the family later names Bond.

Although the Forgers continue to lead their individual lives in secrecy, the family—with a new fluffy addition—remains united through all of the unusual obstacles thrown their way.

SPY x FAMILY Part 2 is finished and has 13 Episodes. It is also Known as: SPY×FAMILY 2クール, SxF, Spy x Family, 스파이 패밀리, 间谍过家家

9. The Fable

When you're the infamous prodigy hitman known only as “Fable,” many things come easy. Being a normal person, however, isn't one of them. In fact, being told that he can't kill anyone for a while may just be the hardest job Fable’s ever taken...

The Fable is finished and has 25 Episodes. It is also Known as: ザ・ファブル, The Fable

10. Lycoris Recoil

“LycoReco” is a café with a traditional Japanese twist located in downtown Tokyo. But the delicious coffee and sugary sweets are not the only orders this café takes! From delivering packages short distances, to pick-ups and drop-offs on the lonely streets at night, to zombies and giant monster extermination…?! Whatever your problem, we're here to help! We will solve any kind of "trouble" you may have!

Waiting for you are the ever-smiling poster-girl and the cool, serious newcomer. A petite girl who never wants to work and a young woman approaching thirty who wants to get married. And the manager is a nice guy who’s obsessed with Japan!

Whatever your order is, leave it all up to us♪

Lycoris Recoil is finished and has 13 Episodes. It is also Known as: リコリス・リコイル, Lycoris Recoil

11. Sekai Saikou no Ansatsusha, Isekai Kizoku ni Tensei suru

"I'm going to live for myself!"

The greatest assassin on Earth knew only how to live as a tool for his employers—until they stopped letting him live. Reborn by the grace of a goddess into a world of swords and sorcery, he's offered a chance to do things differently this time around, but there's a catch...He has to eliminate a super-powerful hero who will bring about the end of the world unless he is stopped.

Now known as Lugh Tuatha Dé, the master assassin certainly has his hands full, particularly because of all the beautiful girls who constantly surround him. Lugh may have been an incomparable killer, but how will he fare against foes with powerful magic?

The World's Finest Assassin Gets Reincarnated in Another World as an Aristocrat is finished and has 12 Episodes. It is also Known as: 世界最高の暗殺者、異世界貴族に転生する, Ansatsu Kizoku, The World's Finest Assassin Gets Reincarnated in Another World as an Aristocrat

12. SPY×FAMILY CODE: White

He's a spy. She's an assassin. Together, Loid and Yor keep their double lives to themselves while pretending to be the perfect family. However, their adopted daughter Anya, a telepath, knows both of their exciting secrets unbeknownst to them. While under the guise of taking his family on a weekend winter getaway, Loid's attempt to make progress on his current mission Operation Strix proves difficult when Anya mistakenly gets involved and triggers events that threaten world peace!

SPY x FAMILY - CODE: White is a Movie. It is also Known as: SPY×FAMILY CODE: White, SPY×FAMILY CODE: White

13. Buddy Daddies

Assassins Kazuki Kurusu and Rei Suwa meet Miri, a girl looking for her father on Christmas Day. Kazuki, Rei, and Miri unexpectedly end up living together.

Follows Kazuki Kurusu, a criminal contractor/coordinator who lives with his best friend, Rei Suwa, a professional assassin who has been raised from childhood to be a contract killer. Kazuki is outgoing and loves gambling and women, while Rei is a man of few words who spends his off time playing video games. One day, the two buddies end up caring for Miri Unasaka, a four year old girl whose father is a mafia boss, after Miri accidentally wanders into a firefight in a hotel while looking for her father.

Buddy Daddies is finished and has 12 Episodes. It is also Known as: バディ・ダディズ, Buddy Daddies

14. Kimi wa Meido-sama.

This is the story of a maid who is all alone in the world, but who finally finds a family.

Told from young that her only worth is as a killer, Yuki had known nothing else except cold efficiency and following orders. Now that she has a chance to leave her past behind, she arrives at the doorstep of Hitoyoshi Yokoya, asking to be employed… as a maid?! Thus begins the journey of a former assassin learning what it means to be ‘normal’!

You Are Ms. Servant is finished and has 12 Episodes. It is also Known as: 君は冥土様。, Kimi wa Meido-sama.

15. Dead Mount Death Play

It's a showdown for the ages as the legendary hero takes on the corpse god necromancer, but when the dust settles, something isn't quite right... In the final moments of their epic confrontation, the corpse god's final gambit shot was wholly unexpected -- reincarnation magic! Across space and time, a boy named Polka Shinoyama awakens feeling...not quite himself...... Who could've expected that the climactic battle between good and evil would turn out like this??

Dead Mount Death Play is finished and has 12 Episodes. It is also Known as: デッドマウント・デスプレイ, Dead Mount Death Play

16. Cike Wu Liuqi

On a small island, Seven, an assassin who can disguise himself as anything, carries out various assassinations at a low price, charging only 567 yuan for each mission.

Scissor Seven is finished and has 10 Episodes. It is also Known as: Cike Wuliuqi, Ci Ke Wu Liu Qi, Assassin Seven, Killer Seven