Hiroya Oku

Hiroya Oku (奥 浩哉 Oku Hiroya?, born September 16, 1967 in Fukuoka, Fukuoka) is a manga artist who is the creator of Gantz, Zero One and HEN, all of which have been serialized in Young Jump. He is currently working on Phase 3 of Gantz, which began in October 2009. His manga often contain explicit violence and gore, as well as sexual situations.