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Hiroya Oku
Hiroya Oku (奥浩哉) is a Japanese manga artist born September 16, 1967, in Fukuoka, Japan. He debuted under the pen name Kuon Yahiro, taking second prize in the 1988 Young Jump Youth Manga Awards for "Hen." He is best known for creating the seinen series Gantz, serialized in Weekly Young Jump from 2000 to 2013, and Inuyashiki. His work is noted for graphic violence and explicit content, and he was an early adopter of digital 3D modeling software for manga backgrounds.