Cha Joon, a twenty-five-year-old college drop spends his life playing a mobile game called Mystical creature master, where he hunts virtual mystical creatures by going to the mapped location on his phone. on one of his hunts, he meets a real mystical creature "Fenrir" and gets killed, but when he opened his eyes he found himself in a world of sword and magic. what unexpected and extraordinary journey awaits Cha Joon in this new world.