Shinichi IshizukaShinichi Ishizuka.

Shinichi Ishizuka (Japanese: 石塚真一, Hepburn: Ishizuka Shin'ichi; born 1971) is a Japanese manga artist. He made his debut in 2001 and began his first series, Gaku: Minna no Yama, a manga about mountain climbing, in Big Comic Original in 2003, where it was serialized until 2012. He also created Blue Giant, a manga about jazz, and its sequels, which have been serialized in Big Comic since 2013.