A Japanese manga storywriter, novelist and screenwriter. He was an editor at Weekly Shonen Magazine from 1987 to 1999, he was in charge of Shoot!, MMR and GTO among others.

KIBAYASHI Shin also goes by other pen names:

• AGI Tadashi (亜樹直 - shared with his sister KIBAYASHI Yuuko/樹林ゆう子)
• AMAGI Seimaru (天樹征丸)
• ANDOU Yuuma (安童夕馬)
• AOKI Yuuya (青樹佑夜)
• ARIMORI Jouji (有森丈時)
• IGANO Hiroaki (伊賀大晃)
• RYUUMON Ryou (龍門諒)
• S.K