The original Shinobu personality, before his madness took hold, held extreme black and white views on the nature of the world. As such, he was as virtuous as humanly possible to those whom he considered righteous, but was utterly ruthless with regard to all those who he believed to be evil. In his estimation, humans were good, and demons were evil, without exception. While never sadistic in the performance of his duties, his perspective enabled him to kill demons for years, often quite brutally,