en Cuevana 3. When the absolute evil 'Museoksajon', who has been sealed in the underworld for 10,000 years, steals the 'Guhonsak' and runs away, unknown deaths continue in the human world and become engulfed in chaos. 'Beommugu', a podu who digs into a strange death, is a seo-saeng 'Sapil -an ' who barely survives after being threatened with death .