On a perilous adventure across a post-apocalyptic world, a lovable boy who's half-human and half-deer searches for a new beginning with a gruff protector.
Since the Edo periods of Japan, gladiator arenas exist in certain areas. In these arenas, wealthy business owners and merchants hire gladiators to fight in unarmed combat where winner takes all. Toki Taouma, nicknamed "Ashura," joins these arenas and devastates his opponents. His spectacular ability to crush his enemies catches the attention of the big business owners, including the Nogi Group chairman, Nogi Hideki.
Victor Genovés, an influential businessman, is blackmailed: if he doesn't agree to pay a large sum of money, the self-styled Midas favorites will kill a person at random at a designated place and time and add a new victim periodically until they achieve their goal. How many deaths will he be able to carry on his shoulders?