Ikihagi (skinning animals alive) (生剥)
Ikihagi' is a sense of sin, a concept in Shinto, and one of "amatsu-tsumi " (heavenly sins) appeared in Oharae no kotoba, one of 'Norito' (Shinto prayers) collected in the eighth volume of "the Engishiki" (an ancient book for codes and procedures on national rites and prayers)
It is agreed that Ikihagi refers to the action of skinning horses alive.