Shin Kibayashi

Shin Kibayashi (樹林 伸) is a Japanese manga storywriter, novelist and screenwriter. Under the name Yuma Ando, he received the 2003 Kodansha Manga Award for shōnen for writing Kunimitsu no Matsuri. The pen name "Tadashi Agi" (亜樹 直) is shared with his sister. He graduated from Tokyo Metropolitan Musashi Senior High School and Waseda University School of Economics & Political Science.

Pen names
Besides the main pen-name of "Tadashi Agi", Shin Kibayashi also goes by other pen names:
 * Seimaru Amagi (天樹征丸 Amagi Seimaru)
 * Yuma Ando (安童夕馬 Andō Yūma)
 * Yuya Aoki (青樹佑夜 Aoki Yūya)
 * Jōji Arimori (有森丈時 Arimori Jōji)
 * Hiroaki Igano (伊賀大晃 Igano Hiroaki)
 * Ryō Ryūmon (龍門諒 Ryūmon Ryō)
 * S.K

As Seimaru Amagi

 * Kindaichi Shōnen no Jikenbo (金田一少年の事件簿) (1992–present, Kodansha), original idea; English translation: Kindaichi Case Files (2004–2008, Tokyopop)
 * Detective School Q (探偵学園Q) (2001–2005, Kodansha)
 * Rimōto (リモート) (2002–2004, Kodansha); English translation: Remote (2004–2006, Tokyopop)
 * Fatal Frame: Shadow Priestess (零 影巫女) (2014–2017, DeNA)
 * (2016–ongoing, Shogakukan)
 * (2021–ongoing, Kodansha)

As Tadashi Agi

 * Gakkou no Kowai Uwasa (学校の怖い噂) (1994–1995, Kodansha)
 * Psycho Doctor (サイコドクター) (1995–2003, Kodansha)
 * Psycho Doctor Kai Kyousuke (サイコドクター楷恭介) (2004, Kodansha)
 * Kami no Shizuku (神の雫) (2004–2014, Kodansha); English translation: The Drops of God (2011–2012, Vertical)
 * Kaitō Ruban (怪盗ルヴァン) (2014–2015, Kodansha)
 * Marriage ~The Drops of God Final Arc~ (マリアージュ 〜神の雫 最終章〜) (2015–2020, Kodansha)

As Yuma Ando

 * Psychometrer Eiji (サイコメトラーEIJI) (1996–2000, Kodansha)
 * Kunimitsu no Matsuri (クニミツの政) (2001–2005, Kodansha)
 * Tokyo Eighties (東京エイティーズ) (Shogakukan) (2003–2005, Kodansha)
 * Shibatora (シバトラ) (2006–2009, Kodansha)
 * Psychometrer (サイコメトラー) (2011–hiatus, Kodansha)
 * Tanteiken Shādokku (探偵犬シャードック) (2011–2013, Kodansha); English translation: Sherlock Bones (2013–2014, Kodansha USA)
 * Shinjuku DxD (新宿D×D) (2014–ongoing, Kodansha)
 * Debusen (でぶせん) (2014–2016, DeNA)

As Yuya Aoki

 * Gettobakkāzu Dakkan'ya (ゲットバッカーズ -奪還屋-) (1999–2007 Kodansha); English translation: GetBackers (2004–2008, Tokyopop)
 * Saiko Basutāzu (サイコバスターズ) (2003 Kodansha); English translation: Psycho Busters (2008–2009, Del Rey Manga)
 * Oniwaka to Ushiwaka -Edge of the World- (鬼若と牛若 —Edge of the World—) (2010–ongoing, Kodansha)

As Jōji Arimori

 * Snow Dolphin (スノードルフィン) (2000–2001, Kodansha)
 * Asobot Military History Goku (アソボット戦記五九) (2001–2002, Kodansha)

As Hiroaki Igano

 * The Knight in the Area (エリアの騎士) (2006–2017, Kodansha) Anime Adaptation 2012
 * iContact (iコンタクト) (2021–ongoing, Kodansha)

As Ryō Ryūmon

 * Bloody Monday (ブラッディ・マンデイ) (2007–2009, Kodansha)

As Shin Kibayashi

 * Kaze to Kaminari (風と雷) (2009, Kodansha)
 * Shima Kōsaku no Jiken-bo (島耕作の事件簿) (2017–ongoing, Kodansha)

Other media
The main characters of Magazine Mystery Reportage were based on then editors of Weekly Shonen Magazine, including Kibayashi who acts as the leader of the team investigating various conspiracies.

On January 14, 2015, it was announced through Nintendo that Kibayashi was writing the story for the fourteenth Fire Emblem game, entitled Fire Emblem Fates.

On August 31, 2021, Netflix announced that they are working with Shin Kibayashi on an original anime series titled Lady Napoleon.