Doomsday: I, a top killer, became a lolita is a thrilling novel that combines elements of apocalypse, system, and unexpected transformation. The story follows Ning Yu, a skilled assassin on the brink of retirement, who finds himself thrust into a zombie-infested world after being betrayed by his organization. To his surprise, Ning Yu undergoes a drastic physical transformation, turning into a charming and adorable lolita character. As he navigates this new reality, readers are taken on a captivating journey filled with action, mystery, and unexpected twists.