Akari Kizaki, who was reincarnated as a saint in an otome game, was absorbed in making potions and spent her days neglecting love.However, she was framed by the first prince and the villainess, who were supposed to be her targets, and she was forced out of her position.Undeterred, she continues to work hard at making potions even after being demoted, when the second prince, Roy, who is rumored to be a "cruel prince," invites her to help him usurp the right to inherit the throne...!?The drama of overthrowing the nation between a defeated saint and a cruel prince begins!