This book tells the story of a young boy from the Kingdom of Light, following his life from childhood and the many setbacks he faces along the way. During an imperial war, the male lead is rescued. At the mysterious woman's urging, he joins the Knights of the Kingdom of Light. Under the guidance of the Flame Corps commander, he makes it to Radiant City and joins the Light Corps.
Unfortunately, when the mysterious woman reveals her identity as an assassin, she is discovered by the leader of the Shadow Organization and forcibly taken away. Faced with this devastating blow, what will the male lead choose to do? Will he ever see the mysterious woman again?