Gantz no Moto: Oku Hiroya to SF Eiga Monogatari
Gantz no Moto Oku Hiroya to SF Eiga Monogatari : This manga tells stories about the mangaka’s (OKU Hiroya) favorite movies and how they helped and lead to the creation of the manga Gantz.
Alternative: Gantz Origins: Oku Hiroya and SF Movie Stories
Release: 2011
Authors: Hiroya OKU
Artists: Hiroya OKU
Tag(s): Autobiographies, Comic Essays, One Shot, Seinen, Slice of Life