A world where humans and demons coexist. People lived in fear of demons. However, there were those who hunted demons with the power of that mighty "qi". "Hunters" (Sayyds), so they were called. With silver hair and eyes, he is the most skilled hunter in the frontier, known as the Silver Lusher! A strange thread of fate leads to an encounter between Lucia and the legendary monster-devouring sword Nayel, forged by a non-human! (google translated)