She is known for not sleeping with her customers because she can quell their magic by singing. Although she is heartbroken over the loss of her hometown, she is determined to live out her days with a cheerful attitude and a strong will. One day, Ilya receives a top-secret request from a ruthless and merciless sorcerer called the "Knight of Silver Ice," Sian Asberg--!　The higher the attack power, the more the magic power goes out of control, and in order to calm it down, soldiers usually sleep with prostitutes. Shean is famous for not sleeping with prostitutes.　When she visits him, she finds him breathing out in pain. This is a pure and sad love story of a lonely prostitute who cannot be honest and a knight who hides his purity under a cold mask.