Born as an ordinary person who has great magical energy, you are asked to lead the war on the front lines, in order to defend the Sumeru region which is on the verge of destruction, thanks to your participation in the war, the Sumeru empire can achieve victory, earning you the nickname "lion female". As if not satisfied with just Sumeru's victory, the imperial nobles put you in the position of the Emperor's concubine just to take advantage of your power which they feared would be a threat to.