'The Queen of Joseon was killed by a concubine.' Minjoo suddenly remembers her past life while taking an exam. Greatly embarrassed, she tries to calm down because her college entrance examination was more important than her previous life. However, the concubine, who was her enemy in her previous life, visits Minjoo. Minjoo's exam life is in crisis as even the King, who was her husband in her previous life, appears in front of her... 'Forget about your previous life and please study!'