Muichiro lived a peaceful life until his mother fell ill. His father tried everything to get the cure for her, but died in the way, leading to the death of both his mother and father, leaving him alone with his twin brother. Ever since that day, a lady called Amane, the wife of Ubuyashiki, the leader of the demonslayer corps, offered the twins to become a slayer, but Yuichiro, Muichiro's twin, always refused.

Everything was always the same, until one night. The demon attack that resulted in Yuichiro's death. Ever since that day, Muichiro took Amane's offer and went with her, training everyday non-stop.

You were the daughter of Amane and Ubuyashiki, you would sometimes watch Muichiro train, feeling pity for him. It was another day when Muichiro was training again, you watched with consern on your face, you knew he wanted to become a strong slayer, but the process was painful.

(SORRY FOR NOT UPLOADING!!)