Manga written by Mangaka NISIOISIN:

Shounenhou no Koro

In 2022, a new law was enacted for the protection of children - the Juvenile Welfare Law. With severe punishments for minors, this law greatly reduced the rate of juvenile crime...not! As juvenile crimes get more twisted and bizarre, only the government's designated Juvenile Detectives can step in and solve the case. One day, Juvenile Detective Kokorono Koro is called to the scene of a strange and bloody murder...

4.1 (24)
Mystery
Cool Shock Guy B.T.

Nisio Isin and Posuka Demizu return to create another spin-off in the Cool Shock B.T. universe. An adult B.T., working as a magician in Las Vegas, challenges a gunslinging gambler in a high-stakes roulette game.

3.9 (23)
Action Psychological Comedy Adventure
Matohazure Q-doubu

After a spree of students have been injured by an indiscriminate serial archer, Yumi Ishii has had enough after the 11th victim was hurt. She will stop at no lengths to bring the Q-dou Club to justice, whom she believes are the culprits! With the Q-dou Club members being Aarou Achiya, a modern archer delinquent; Yamato Kouinji, a traditional archer that creeps on women; One-Eighty Yuge, a gambling darts player; and the mysterious club leader, Q-dou Gen, who is…?! Who is the culprit behind these mysterious "serial archer" incidents? Will Yumi bring the culprits down on her quest for justice?! Find out in this one-shot! The Q in Q-dou Club stands for QUEST!!!

4.0 (43)
Action Mystery
Medaka Box (Official Colored)

Kurokami Medaka, a first year, is elected as Student Council President, and the first thing she does is establish a suggestion box. Since she was just elected as Student Council President, she's holding all the Student Council's responsibilities, and wearing their armbands. So, she asks her childhood friend Hitoyoshi Zenkichi, for help. This release has 21 volumes compared to the 22 for the monochrome version and is split into 7 parts. Each part being a different arc with 1-5 volumes. Part 1: Student Council Executive Arc Vol. 1-2, (1-2) Part 2: Thirteen Party Arc Vol. 1-4, (3-6) Part 3: Kumagawa Incident Arc Vol. 1-4, (7-10) Part 4: Kurokami Medaka's Successor Arc Vol. 1-5, (11-15) Part 5: Jet Black Bride Arc Vol. 1-2, (16-17) Part 6: Unknown Shiranui Arc Vol. 1-3, (18-20) Part 7: Bouquet Toss To The Future Arc + Epilogue Arc Vol. 1, (21)

4.1 (84)

Chapter 44

5 years ago
Action Comedy Adventure Drama
Shin Honkaku Mahou Shoujo Risuka (Promotional Comic)

Adaptation of the climax scene from chapter 1 of the first volume of NISIOISIN's Shin Honkaku Mahou Shoujo Risuka novel series, done in commemoration of the fourth volume's release.

3.6 (32)
Action Psychological Magical Girls
Jump Romcom Festival!

A collection of short one shots from Jump's RomCom Festival: 1. *Masked Detective, Masque de Holmes and the Kiss Thief* (覆面探偵 マスク・ド・ホームズとキス泥棒) by Nishio Ishin and Saeki Shun - [MAL](https://myanimelist.net/manga/138956) 2. *Juumonji-san of the Infirmary* (保健室の十文字さん) by Hanada Tomoya - [MAL](https://myanimelist.net/manga/144716) 3. *Kii-chan's Lunch* (きーちゃんのお昼ごはん) by Nakayama Michiru - [MAL](https://myanimelist.net/manga/144717) 4. *This Is Why Our Eyes Won't Meet* (だから、瞳はまじわらない) by Tonogaya Miyuki - [MAL](https://myanimelist.net/manga/144718) 5. *Onizaka-san Is a Bit Scary* (鬼崎さんはちょっと怖い) by Tatefuji Tomohiro - [MAL](https://myanimelist.net/manga/144720) 6. *The Wakaba-chan on My Stomach* (下腹部の若葉ちゃん) by Yamamoto Ryouhei - [MAL](https://myanimelist.net/manga/144721) 7. *The Duo That Lacks Experience* (ふれないふたり) by Kawaguchi Yuuki - [MAL](https://myanimelist.net/manga/144612)

3.8 (114)

Chapter 7

6 years ago
Romance Comedy
Shounen Shoujo

Enrolled in a certain elementary school is an unpleasant 11-year-old boy with a highly cynical outlook on society. Believing that the world lacks individuality, he wants nothing more than to be unique and remembered. The boy seemingly gets the chance to leave his name in history when he becomes the first to be diagnosed with a new incurable disease that is estimated to kill him by the age of 12. Just as he is rejoicing about his newfound individuality, he meets a cheerful, prodigious girl who has the same disease and is nearing her 12th birthday. As the boy realizes that he won't be the first to die from the disease and therefore won't be remembered, he forms a twisted plan: kill the girl before her illness does.

3.6 (450)

Chapter 15.5

6 years ago
Psychological Comedy Drama Mystery Tragedy
Oogiri

A collection of nine short stories written by NisiOisin with the collaboration of nine different artists: **Musumeiri Hako (Girl in a Box)** - Artist: [Akatsuki Akira](https://mangadex.org/?page=search&artist=Akatsuki%20Akira) A delinquent finds a girl abandoned in a box… and takes her home… **RKD-EK9** - Artist: [Obata Takeshi](https://mangadex.org/?page=search&artist=Obata%20Takeshi) In future scientists found that heaven exists but you need to do a certain amount of good deeds in order to get there. So what happens with people, who don't have enough of them? **Nani Made Nara Koroseru?** *(How Far Can You Kill?)* - Artist: [Ikeda Akihisa](https://mangadex.org/?page=search&artist=Ikeda%20Akihisa) Reika asked her neighbour friend Kyuu "how far could he kill?" when they were playing in sandpit. After that coversation they driffted apart. Ten years later Kyuu meets Reika carring a big box. She told him, it's dog corpse. **Hanger Strike!** - Artist: [Fukushima Teppei](https://mangadex.org/?page=search&artist=Fukushima%20Teppei) **Koi Aru Doguya** - Artist: [Yamakawa Aiji](https://mangadex.org/?page=search&artist=Yamakawa%20Aiji) Bad boy Shimane felt in love with a good student Yokoi Shuu. To get her love, he has spent all his money on a magic ring that is supposed to make her fall in love with him. But there is a trick if she won't accept it. Now that he has the ring, what will he do? **Offside o Oshiete** *(Teach Me the Offside)* - Artist: [Nakayama Atsushi](https://mangadex.org/?page=search&artist=Nakayama%20Atsushi) High-school student Itou tries to cope with the disbanding of the soccer club when a girl asks him to explain the offside rule to her. **Doushitemo Kanaetai Tatta Hitotsu no Negai to Wari to Sou demo Nai 99 no Negai** *(The One Wish That He Wants Granted No Matter What, and the Ninety-Nine That He Doesn’t)* - Artist: [Nakamura Hikaru](https://mangadex.org/?page=search&artist=Nakamura%20Hikaru) **Bokura wa Zatsu ni wa Manabanai** - Artist: [Kawashita Mizuki](https://mangadex.org/?page=search&artist=Kawashita%20Mizuki) **Tomodachi Inai Doumei** - Artist: [Kindaichi Renjuurou](https://mangadex.org/?page=search&artist=Kindaichi%20Renjuurou)

3.6 (72)

Chapter 8

7 years ago
Sci-Fi Romance Comedy Drama
Anime Monogatari Series Heroine Book 4: Sengoku Nadeko

Nadeko Sengoku is just an ordinary middle school girl. But what happens when she has an unexpected encounter with a handsome transfer student!? A thrilling, heartwarming romantic comedy is about to start… This is the fourth Anime Monogatari Series Heroine Book. It features Sengoku Nadeko from *Koimonogatari*, "Hitagi End". Sengoku Nadeko creates a manga in-universe! - Ch. 01: Anime Monogatari Series Heroine Book 4 - Ch. 02: ARIA 2014-08 - Ch. 03: Bundled with Koimonogatari Disc Vol. 2 (From: MAL)

3.8 (66)

Chapter 3

8 years ago
Romance Comedy
Zerozaki Soushiki no Ningen Shiken

Iori is a high-school girl who doesn't know what she wants to do with her future, and tends to run away from things. One day, she is attacked by strange dead-eyed people on her way to school, only to be saved by an equally mysterious long-haired man. Later that day, her friend at school, Jion, seems to fall under the same murderous influence. To her surprise, she finds herself capable of defending herself from his violent attack. Afterward, the long-haired man she met in the morning, Zerozaki Soushiki, arrives once more, this time to invite her to become his little sister. What has Iori become involved with, and will she be able to survive this change to her life?

3.7 (61)

Chapter 23

7 years ago
Action Psychological
Desire for a Reply!

A oneshot by Nisioisin and Miyokawa Masaru. Sunaki is a back-up player on the baseball team and he finally gets the courage to give a love letter to the idol of the school. Where will his actions take him?

4.5 (5689)
Romance Sports
Himeiden

Six months ago, a scream was heard all around the world, killing a third of the human population. The story follows Sorakara Kuu, the boy who is not moved by anything, whether happy or sad; whether it's comedy or tragedy.

3.0 (11)

Chapter 3

8 years ago