Bigeikou is a spanking artist, probably from Japan. He draws inked M/F, F/F and M/f spanking scenes in black and white. Subjects include historical settings (both Western and Asian), spanking machines and bondage, among others. His style is very clean lineart with few hatchings and hardly any shadings and no color.
Bigeikou had a website on http://www.jin.ne.jp/ppg/bigeikou/bigeikou.htm, which moved to http://www.fspg.jp/tuta/bigeikou/ in 2002-2003. This site no longer exists (except in the Internet Archive, see link below). Additionally, some of Bigeikou's work is to be seen on Handprints and on Anime OTK.