Sadao Hasegawa (長谷川 サダオ Hasegawa Sadao?, 1945(?) – November 20, 1999) was a prominent Japanese graphic artist specializing in male erotica. His work is notable for superb technical skills, elaborate fantastic settings (occasionally reminiscent of William Blake), and for incorporating Japanese, Indian, South-East Asian and African mythology. While focusing on depictions of muscular male physique, Hasegawa often turns to extreme sexual situations, bondage and SM themes, which, in the context of his stylized fantasy world, attain a nearly sacral intensity.

Hasegawa was born in the north of Japan, and ended his life by committing suicide on November 20, 1999 in BangkokThailand.

– Wikipedia