The daughter of a wealthy plutocrat who died in hatred after being robbed of her family property in her previous life wakes up and experiences life on her first day pretending to be an intern. Faced with the department manager who treats her as a servant, she holds the company's life and death book and begins an elegant revenge. However, when she gets into a fight with the mysterious CEO who always likes to inspect the company late at night, she discovers that he actually holds the key to her previous life's death.
