Have you heard ? Long ago there was a Sentry who would guard the Judgment hall and would work for Underground King .Nobody knew except the king his real identity.He would allways wear a mask wich he had found at waterfalls.At first the monster would only guard from any trespasser who would want to harm the king and his family, but one day King ordered him to bring human souls from the fallen humans. At first he didn't say anything even tho this looked wrong coming from the king who tried to live among the human race peacefully...but in the end he only done what was told by his king.The sentry after a route of genocide on the human race got to his limits .The Sentry left his post as a sentry and disappeared into thin air. Like he never existed.