Eleven year old Siwoo Jeong can only play by himself during gym class. “I’m sitting out.” “Why are you the only one sitting out?” Are you kidding?” “If I go in, everybody else has to sit out. Physically.” To Siwoo, strength isn’t something he’s had to train for, but something that’s come naturally. When he turned sixteen years old though, the world undergoes a catastrophic change.

11 years ago, Eun Sung-min was one of the few survivors from a village that experienced the “Evil Phenomenon”. He and his maid were saved by the mysterious Phantom King and his group, Phantom. Now the Special Environmental Protection Agency is searching for the answers to what happened on that fateful day, and how to combat the “Evil Spirits” that caused such mayhem.