Set across the 1930s during Japan’s occupation of Korea and the present day, this drama follows Han Se Ju, a bestselling author battling writer’s block. He meets Yoo Jin O, a gifted ghostwriter with a mysterious offer—and a hidden condition. Jeon Seol, a former sniper with many talents, is torn between admiration and resentment toward Se Ju. As their stories unfold across time, the series explores the bonds of friendship, the weight of past lives, and the search for redemption against the backdrop of Korea’s turbulent history.