Lured by the high compensation, Reina accepted a special offer to become the secretary of a certain company's chairman. Her curiosity was piqued by an unknown realm she would never experience in her daily life. However, this led to an unexpected development that betrayed her sweet expectations. What began was secret training beyond the bounds of common sense. "Something's off..." Reina thought, trying to separate it from her work. But day by day, her heart and body changed against her will.
