# Monthly Shōnen Rival

Monthly Shōnen Rival (Japanese: 月刊少年ライバル, Hepburn: Gekkan Shounen Raibaru) was a Japanese monthly shōnen manga magazine by Kodansha that ran from April 4, 2008 to June 4, 2014. It was issued on the 4th of every month.
As with Shueisha's Jump SQ. and Shogakukan's Monthly Shōnen Sunday, it is aimed at late teens and people in early twenties.
Shōnen Rival was a replacement of the Comic BomBom, which ended in December 2007 due to decline in interest. Shōnen Rival followed the same fate and due to decline in interest the final issue was released on June 4, 2014. Kodansha noted that it was reassessing its manga magazine lineup to aim for more growth, in seek of other success titles like Attack on Titan. To that end, it stop publication on Monthly Shōnen Rival and conducted research for the new magazine that would replace it.
Though most of the series had managed to end by the final issue, all unfinished series were transferred to online platforms such as Manga Box and New Comic Research Institute (新雑誌研究所, Shin Zasshi Kenkyūjō).

## Shōnen Rival Series

| | Series Title English / Japanese / Romanized | Artist | Author | First Issue | Last Issue |
| 01 | Aoi-sama ga Ikasete Ageru 葵さまがイかせてアゲル | Kiki Suihei | － | 2008.05 | 2009.09 |
| 02 | Blazer Drive ブレイザードライブ (Bureizā Doraibu) | Seishi Kishimoto | － | 2008.05 | 2011.12 |
| 03 | Cinema-kun シネマルくん (Shinemarukun) | Natsuki Matsuzawa | － | 2008.05 | 2010.07 |
| 04 | Edogawa George 江戸川ジョージ (Edogawa Jōji) | Yūichirō Omae | － | 2008.05 | 2009.04 |
| 05 | Emma エンマ (Enma) | Saki Nonoyama | Kei Tsuchiya | 2008.05 | 2010.12 |
| 06 | Gyaruo the Bakutan! ギャル男 THE 爆誕! | Amagi Nakamura | － | 2008.05 | 2010.01 |
| 07 | Holy Talker ホーリートーカー (Hōrī Tōkā) | Rando Ayamine | － | 2008.05 | 2010.04 |
| 08 | Honto ni Atta! Reibai Sensei ほんとにあった!霊媒先生 | Hidekichi Matsumoto | － | 2008.05 | 2014.07 |
| 09 | Imasugu Click! いますぐクリック! (Imasugu Kurikku!) | Takeru Nagayoshi | － | 2008.05 | 2014.05 |
| 10 | Kikai Shōnen Megaboy 機械少年メカボーイ (Kikai Shōnen Megabōi) | Nobuhiro Kawanishi | － | 2008.05 | 2009.03 |
| 11 | Kitsune no Yomeiri きつねのよめいり | Satoshi Takagi | － | 2008.05 | 2011.08 |
| 12 | Kurōbi! Hayata クロオビ!隼太 | Kazuya Sakuta | － | 2008.05 | 2011.03 |
| 13 | Meitantei Pashiri-kun! 名探偵パシリくん! | Tamako Umi | Wain Hinamatsuri | 2008.05 | 2009.05 |
| 14 | Monster Hunter Orage モンスターハンター　オラージュ (Monsutā Hantā Orāju) | Hiro Mashima | － | 2008.05 | 2009.06 |
| 15 | Otōto Catcher Ore Pitcher de! 弟キャッチャー俺ピッチャーで! (Otōto Kyatchā Ore Pitchā de!) | Shinji Tonaka | － | 2008.05 | 2014.07 |
| 16 | unCassandra アンカサンドラ (Ankasandora) | Gumi Amashi | Gorō Hifumishi | 2008.05 | 2008.12 |
| 17 | Zettai Hakase Kolisch 絶対博士コーリッシュ (Zettai Hakase Kōrisshu) | Yuki Kobayashi | － | 2008.05 | 2011.01 |
| 18 | Mukōgawa no Masaka むこうがわのまさか | Amadori | － | 2008.06 | 2009.01 |
| 19 | Majimagumi Hunter Mikuni Shin no Karyūdo Seikatsu 真島組ハンター三國シンの狩人生活 | Shin Mikuni | － | 2008.06 | 2009.06 |
| 20 | Lancelot Full Throttle ランスロットフルスロットル (Ransurotto Furu Surottoru) | Dynamic Tarō | － | 2008.07 | 2009.03 |
| 21 | Kimitaka no Ateru! キミタカの当破! | Tatsuya Kaneda | － | 2008.08 | 2009.04 |
| 22 | Out Code: Chōjō Hanzai Tokumu Sōsakan アウトコード 超常犯罪特務捜査官 (Auto Kōdo) | Karin Suzuragi | Haruhiko Himenogi | 2008.08 | 2009.09 |
| 23 | Magatsuhi.com 禍霊ドットコム (Magatsuhi Dotto Komu) | Sōda Inui | Kazumasa Mori | 2008.09 | 2009.09 |
| 24 | MAGiCO | Chikara Sakuma | － | 2008.09 | 2014.06 |
| 25 | The iDOLM@STER Break! アイドルマスターブレイク! (Aidorumasutā Bureiku!) | Takuya Fujima | － | 2008.10 | 2010.11 |
| 26 | Buster Keel! | Kenshirō Sakamoto | － | 2008.11 | 2012.08 |
| 27 | Tsumuji VS. つむじVS. | Yōichi Tomoyasu | － | 2009.01 | 2009.06 |
| 28 | Akatsuki AKATSUKI -朱憑- | Motoki Koide | － | 2009.02 | 2012.01 |
| 29 | Spray King | Shin Mikuni | － | 2009.02 | 2010.02 |
| 30 | Shikabane 13-gō シカバネ13号 | Tamago Marui | － | 2009.04 | 2009.12 |
| 31 | Fort of Apocalypse アポカリプスの砦 | Yuu Kuraishi Kazu Inabe | — | 2011.7 | 2014.6 |

## Reception

Originally in 2008 the magazine started with 300,000 in circulation per month, but due to decline in interest it felt down to 48,000 copies per month in 2013. By 2014, the circulation was 18,000.