SSES, a secret intelligence organization that manages top-secret national information, 'Ezidoll', who is selected as a new agent after undergoing life-or-death tests... His mission is to supervise special agents who solve unknown mysteries in various places in our society, such as abandoned houses shrouded in an unsettling aura, and abandoned schools where parallel universes exist, with their special abilities. But one day, the dark force, Heukjinhoe, begins to threaten them... Their bad relationship dates back 100 years ago, to the Japanese colonial era... Will the new SSES agent, Jidoll, be able to uncover the 100-year-old conspiracy with these special ability users?