Norihiro Yagi (八木教広 Yagi Norihiro) is a Japanese manga writer and artist from Okinawa Prefecture. He started making manga in 1990.
Norihiro Yagi is a successful manga artist, having won the 32nd Akatsuka Award for his very first work, Undeadman. Undeadman appeared in Monthly Shōnen Jump and has had two sequels. Yagi's first serialized manga was his comedy-genre Angel Densetsu, which appeared in Monthly Shōnen Jump from 1992 to 2000. His most recent work, Claymore, has been running in the magazine since 2001.
Something I noticed in this go-around of reading the series: I think one of Kuroda's nameless friends is a genius. I think it's the one that usually stands at his left hand.