The story of a two-person shogi club: the senpai is obsessed with shogi and making her expressionless kouhai confess.
Note: The author didn’t plan to continue the manga at first, but he has decided to continue. Since he has draws the manga when he has free time, the update schedule is not stable.

A short twitter series by @udon0531.

A series in Young Magazine and Young Magazine the 3rd, where authors write the 100th chapter of a series without writing chapters 1-99 first.

1. Offside Trap Kumeta Kouji (2015, Young Magazine): Ashida Isami is the star player of the Kota High Soccer Club, and childhood friends with its manager, Kaneda Chiyo. Just as his teammates go missing, his mysterious rival recovers from an injury...

2. Tabete Kara no o Tanoshimi da yo! by Ooima Yoshitoki (2015, Young Magazine the 3rd Vol.2)

3. Bravery Saga by Yoshimoto Masume (2015, Vol.3)

4. BattleSexer SEISHIRO by Kubo Yasuhisa (2015, Vol.4): It is the 23rd century, an age of science and technology, where sex is no longer required to reproduce. However, humanity has not forgotten sex! Sex has evolved to become a form of martial arts, and those who practice it are known throughout the world as BattleSexers!

5. Shin Oni-den Nagugowainega by Oshikiri Rensuke (2015, Vol.5)

6. Kantan Z ~Kanzen Tantei Kanta, Saisho de Saigo no Jiken~ by Suzuki Nakaba (2015, Vol.6)

7. Sasa ni Negai o★ by Yamamoto Souichirou (2015, Vol.7)

8. BOWWOW Providence ―Isetsu Hakkenden― by Segawa Masaki (2015, Vol.8)

9. Bari Uma Shokudou Kirishima!! (The Super Delicious Restaurant Kirishima by Seo Kouji (2015, Vol.9)

10. Nie Miko no Touya by Yoshimura Kana (2015, Vol.12)

Venturing into the hills to find her dog who ran away, Hitomi finds a strange lizard girl who is feeling lonely.

Venturing into the hills to find her dog who ran away, Hitomi finds a strange lizard girl who is feeling lonely.

Kazuki’s sister brings home a stray cat, who is actually a middle aged man in disguise.

Venturing into the hills to find her dog who ran away, Hitomi finds a strange lizard girl who is feeling lonely.

A girl from the Edo era somehow time-travels to modern Japan and finds the reincarnation of her dead lover in Tokyo... a middle school kid. He wants nothing to do with her. A little “get to know you“ story.

This manga has been released by Yamamoto Souichirou @udon0531 on Twitter.
He is not sure if he continues the manga.

Twitter oneshot for Cat Day 2020 (Feb 22nd)

A collection of SNS published pictures, each showing a girl with a particular theme.

The release does not have chapters, but I've broken them up in a set of 10.

A short twitter series by @udon0531.

From the author of Karakai Jouzu no Takagi-san comes another sweet couple’s comedy about Tanaka Ayumu, a first year high school student who is secretly in love with his senior, the president of the unofficial Shogi club, Yaotome Urushi. Tanaka vows to confess his feelings to Yaotome after he manages to defeat her in a game of shogi, but he’s a beginner at the game and Yaotome always beats him. Meanwhile, she keeps trying to get Tanaka to admit his feelings, but he rarely allows his poker face to slip.Though the day of his victory is still nowhere to be seen, this is the story in which he may ‘checkmate’ her by other means.

Venturing into the hills to find her dog who ran away, Hitomi finds a strange lizard girl who is feeling lonely.

Ayumu wants to beat his Senpai at Shogi so he can confess his feelings.
Though the day of his victory is still nowhere to be seen,
this is the story in which he may ‘checkmate’ her by other means.

Okamoto, a young middle schooler, wants to confess his love to a girl named Kamiyama through a love letter. However, things go out of his plan when Kamiyama shocks him with an unthinkable request.

One of Yamamoto Souichirou's earlier work. Featured on Shonen Sunday Comics Special, this one-shot takes place in the same universe as Karakai Jouzu no Takagi-san.

The adventures of Nishikata Chi in middle school.

This manga was released on Twitter by Yamamoto Souichirou.

Collection of random Twitter Webcomics.

Spring has arrived. Having just turned 13, the young witch Koharu has embarked on the traditional journey of independence. Now, she just needs someplace to crash.

Kazuki is shocked to discover that his sister's new pet cat is, in fact, a middle aged man in disguise.

Venturing into the hills to find her dog who ran away, Hitomi finds a strange lizard girl who is feeling lonely.


(Source: MU)

1. (Fate Has A Strange, Strange Taste) [Yamamoto Souichirou]

2. (Witches Fly Through the Sky on Brooms) [Matsuse Daichi]

A slice of life comedy revolving around the conversations and daily shenanigans of three schoolgirls. Mina is lively and gets into mischief; Yukari is the class rep and usually follows Mina's lead; and Sanae is a member of the track club who, unlike her friends, prefers to stay cool and act rationally.


(Source: MU)

Venturing into the hills to find her dog who ran away, Hitomi finds a strange lizard girl who is feeling lonely.

A story about a girl's short-lived quest to become more interesting in order to catch her crush's attention.

An anthology booklet featuring various artists, included with special edition copies of Ueno-san wa Bukiyou volume 6.

The story centers on sisters who discover a mysterious egg.

A series in Young Magazine and Young Magazine the 3rd, where authors write the 100th chapter of a series without writing chapters 1-99 first.
1. Offside Trap Kumeta Kouji (2015, Young Magazine)
2. Tabete Kara no o Tanoshimi da yo! by Ooima Yoshitoki (2015, Young Magazine the 3rd Vol.2)
3. Bravery Saga by Yoshimoto Masume (2015, Vol.3)
4. BattleSexer SEISHIRO by Kubo Yasuhisa (2015, Vol.4)
5. Shin Oni-den Nagugowainega by Oshikiri Rensuke (2015, Vol.5)
6. Kantan Z ~Kanzen Tantei Kanta, Saisho de Saigo no Jiken~ by Suzuki Nakaba (2015, Vol.6)
7. Sasa ni Negai o★ by Yamamoto Souichirou (2015, Vol.7)
8. BOWWOW Providence ―Isetsu Hakkenden― by Segawa Masaki (2015, Vol.8)
9. Bari Uma Shokudou Kirishima!! by Seo Kouji (2015, Vol.9)
10. Nie Miko no Touya by Yoshimura Kana (2015, Vol.12)

A series in Young Magazine and Young Magazine the 3rd, where authors write the 100th chapter of a series without writing chapters 1-99 first.
1. Offside Trap Kumeta Kouji (2015, Young Magazine)
2. Tabete Kara no o Tanoshimi da yo! by Ooima Yoshitoki (2015, Young Magazine the 3rd Vol.2)
3. Bravery Saga by Yoshimoto Masume (2015, Vol.3)
4. BattleSexer SEISHIRO by Kubo Yasuhisa (2015, Vol.4)
5. Shin Oni-den Nagugowainega by Oshikiri Rensuke (2015, Vol.5)
6. Kantan Z ~Kanzen Tantei Kanta, Saisho de Saigo no Jiken~ by Suzuki Nakaba (2015, Vol.6)
7. Sasa ni Negai o★ by Yamamoto Souichirou (2015, Vol.7)
8. BOWWOW Providence ―Isetsu Hakkenden― by Segawa Masaki (2015, Vol.8)
9. Bari Uma Shokudou Kirishima!! by Seo Kouji (2015, Vol.9)
10. Nie Miko no Touya by Yoshimura Kana (2015, Vol.12)

Fudatsuki Kenji is known in school for two things: for being a delinquent and for having a sister complex. He constantly follows his sister Kyoko around, fixing her giant ribbon and chasing off any boys who might be interested in her. However, the truth is much stranger than people believe. He actually doesn't have a crush on his sister—in fact, he likes Hibino, the only girl in class who isn't afraid of him.


The problem is that his sister is literally monster. She's a jiangshi (vampire), who is much stronger than an ordinary person and who needs a certain amount of blood from Kenji each day. Her ribbon keeps her in check, but if it comes off, she instinctively attacks the nearest person. Her ribbon also has a huge effect on her personality. With the ribbon, she's irritable and sharp-tempered, but without it, she's extremely sweet and apologetic (while she attacks). Will Kenji be able to keep his sister from hurting anyone, and maybe find some way to overcome his sister-complex reputation enough to have a chance with Hibino?


(Source: MangaHelpers)

Fudatsuki Kenji is known in school for two things: for being a delinquent and for having a sister complex. He constantly follows his sister Kyoko around, fixing her giant ribbon and chasing off any boys who might be interested in her. However, the truth is much stranger than people believe. He actually doesn't have a crush on his sister-- in fact, he likes Hibino, the only girl in class who isn't afraid of him. The problem is that his sister is literally a monster. She's a jiangshi (vampire), who is much stronger than an ordinary person and who needs a certain amount of blood from Kenji each day. Her ribbon keeps her in check, but if it comes off, she instinctively attacks the nearest person. Her ribbon also has a huge affect on her personality. With the ribbon, she's irritable and sharp-tempered, but without it, she's extremely sweet and apologetic (while she attacks). Will Kenji be able to keep his sister from hurting anyone, and maybe find some way to overcome his sister-complex reputation enough to have a chance with Hibino?

A collection of one-shots by Souichirou Yamamoto.


1. Koibumi

2. Machinimatta Otonari-san

3. Neko no Ossan

4. Sasa ni Negai wo★

5. Kaijuu no Tokage

6. Matsumoto Eiko wa Futsuu no Ko

7. Minarai Witch

Neko no Ossan received an honorable mention at the 69th Shogakukan Newcomer Comic Awards in December 2011.

Publishers:

• Gessan (magazine)

That’s a story about a Hero and a Priest. Will he win a victory against her someday?

A series in Young Magazine and Young Magazine the 3rd, where authors write the 100th chapter of a series without writing chapters 1-99 first.
1. Offside Trap by Kumeta Kouji
2. Tabete Kara no o Tanoshimi da yo! by Ooima Yoshitoki
3. Bravery Saga by Yoshimoto Masume
4. BattleSexer SEISHIRO by Kubo Yasuhisa
5. Shin Oni-den Nagugowainega by Oshikiri Rensuke
6. Kantan Z ~Kanzen Tantei Kanta, Saisho de Saigo no Jiken~ by Suzuki Nakaba
7. Sasa ni Negai o★ by Yamamoto Souichirou
8. BOWWOW Providence ―Isetsu Hakkenden― by Segawa Masaki
9. Bari Uma Shokudou Kirishima!! by Seo Kouji
10. Nie Miko no Touya by Yoshimura Kana

Collection of Yamamoto Souichirou's Oneshots

1. Love Letter: Okamoto, a young middle schooler, wants to confess his love to a girl named Kamiyama through a love letter. However, things go out of his plan when Kamiyama shocks him with an unthinkable request.

2. The Neighbor I've Longed for

3. Middle-aged Cat Guy: Kazuki's sister brings home a stray cat, who is actually a middle aged man in disguise.

4. A Wish for Sasa★

5. Monster Lizard: Venturing into the hills to find her dog who ran away, Hitomi finds a strange lizard girl who is feeling lonely.

6. Matsumoto Eiko Is an Average Girl: Oneshot about a girl's short-lived quest to become more interesting in order to catch her crush's attention.

7. Witch in Training: Spring has arrived. Having just turned 13, the young witch Koharu has embarked on the traditional journey of independence. Now, she just needs someplace to crash.

A of one-shots where authors write the 100th chapter of a work without writing chapters 1-99.

Anthology from various doujin artists about Nagatoro and Senpai keeping to the theme of Nagatoro teasing Senpai and sometimes it backfiring on her.

Russian / Русский: Антология с короткими историями от разных авторов на тему оригинальной манги "Не издевайся, Нагаторо-сан".

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Volume 1 (Nagatoro-san wo, Ijiritai!!)
Chomoran, Cool Kyoushinja, Hiroe Rei, Hotondo Shindeiru, Konbu Wakame, Najima Keiji, Nanashi, Orimoto Mimana, Shimimaru, Suzumoto Kou, Uchiyama Atsushi(Attsun)
Volume 2 (Soko Ijirunsuka, Nagatoro-san!)
Azu, Katou Yuiichi, Kawamura Taku, Mochinchi, Nanashi, Okamoto Lynn, Sukeno Yoshiaki, Suzuki Kenya, Tanigawa Nico, tugeneko, Watanabe Shizumu, Yamamoto Souichirou
Volume 3 (Ijirushikanai! Nagatoro-san)
Manga: Sagara Riri, Nishide Kengoro, Andou Masaki (single page), Morishige Takuma, Enokidu/Enokids, Kumano Kyu, Sakurai Norio, Bimita
Illustrations: Issiki/Isshiki, Kitada Ryouma, Souji Hougu, Namori, Nekoume, Yamada Yoshinobu
Volume 4 (Motto Shiritai! Nagatoro-san!)
Manga and Illustrations: 774 (Nanashi)
Volume 5 (Ippai Misemasu! Nagatoro-san)
Illustrations: Sugiura Jiro, Maki Keigo, CHANxCO, Honjou Raita, nonco, 774 (Nanashi)

Notes:
The Artist/Author fields only accepted 19 names before failing which isn't ideal for anthologies so I've split them between the two

An comic of Kanojo, Okarishimasu by various mangaka.