In a secluded life under her father's protection, nine-year-old Lily, who was born deaf, encounters a legendary group, the Crimson Vow, when they rescue her home from bandits. Surprisingly, after this event, Lily not only regains her hearing but also gains the extraordinary gift of communicating with nanomachines and harnessing magic. With only her loyal attendant, Lafine, by her side, Lily embarks on a thrilling journey to explore the vast and unknown world, marking the commencement of the epic tale known as the Legend of Lily Lockwood.