Ten-year-old Jun-su is a bright and obedient boy whose only desire is to be a credit to his family, his nation, and most importantly, his Dear Leader. However, when he discovers a copy of The Dungeon Master's Guide, left behind in a hotel room by a rare foreign visitor, a new and colorful world opens up to him. With the help of an English-speaking teacher, Jun-su deciphers the rules of the famous role-playing game and his imaginary adventures sweep him away from the harsh reality of a famine-stricken North Korea. Over time, the game leads Jun-su on a spellbinding and unexpected journey through the hidden layers of his country, toward precocious success, glory, love, betrayal, prison, a spell at the pinnacle of the North Korean elite, and an extraordinary kind of redemption.