The Demon King Who Leveled up Without Attack, also known as 무공으로 레벨업하는 마왕님, is a captivating Korean web novel that falls under the genres of adventure, fantasy, martial arts, mystery, psychological, and shounen. Set in a world filled with heroes, kingdoms, monsters, and the imminent need to save the world, this novel follows the journey of a male protagonist with a unique twist - he levels up without resorting to traditional attacks. The narrative promises an exciting blend of action, strategy, and character development that will keep readers engaged from start to finish.