Regios, the empire’s strongest warrior, heads to the frontier with his daughter Sierra, whose engagement was broken off. What should have been a peaceful slow life in the countryside awaits them, but assassins sent by her former fiancé, Prince Mizai, are closing in! What’s worse, Regios has been cursed with only one year to live, cutting his abilities in half, putting him at a severe disadvantage… Now the bond between father and daughter will be put to the test!