500 years ago when he was still alive, Bason was born in the time of war and became a Chinese Wujiang (武将. A military class of ancient China) that served for the Tao family. According to both Shaman King data books, which were released only in Japan, information such as his date of birth and blood type are unknown. In his days as an ancient Chinese warrior, Bason rode into battle on a horse named Hei-Tao. He has crossed swords with so many other warriors, who used all sorts of weapons and different martial arts techniques. He then defeated them and learned all about their techniques becoming the true "Master of Arms". When he died he became a spirit and continued to be a loyal servant of the Tao family and eventually ended up becoming the guardian ghost of Tao Ren.