"Kabuto is a highly skilled assassin eager to escape his dangerous profession and the hold his handler, the sinister Doctor, has over him. The Doctor, a real physician who hands over Kabuto's targets as "prescriptions" in his regular appointments with him, doesn't want to lose Kabuto as a profitable asset, but he agrees to let him pay his way out of his employment with a few last jobs. But the most lucrative jobs involve taking out other professional...