An Acolyte Revolution

An unforeseen crash of an airplane initially caused by a wolflike assassin led to the deaths of many innocent lives including the target whose daughter miraculously survived the accident and was rescued by a trained warrior from an ancient cult of skilled fighters who have kept themselves hidden for many centuries away from the civilization. As an orphan, she wasn't aware of her past until a fateful encounter with ferocious beasts of the Sao clan whom she is trained as an acolyte to hate brought to light the guilt of the cult. Will she overcome her desire for vengeance against those responsible for the death of her parents after falling in love with the clan's heir or will she team up with the once-hated clan to face a new threat that seeks to destroy the world?