Lillia Asplay is a young girl and Legitimate Brave chosen by the great holy sword Seniorious. "You really are extremely bad at living after all, you know?" She said, while feeling complex emotions, to her senior apprentice who doesn't give up on standing beside her on the mission she is burdened with of protecting the human race. On the surface where monstrous creatures prevail, the days she spends are intense and at the same time endearing. This is the story of the heroes and the people who are living now in a land that will eventually perish.

(Source: Kadokawa, translated)