He is a disciple of Shushan. He always obeys the teachings of his master and follows the example of his senior brother who died with the demon. However, as the days of slaying demons increase, he becomes inextricably confused and puzzled about the good and evil in the world. Until that day after the spring rain, when he regained his strength and wielded the sword, he could not move on her... If one day, you see a person whose heart suddenly becomes enlightened and doubts disappear, then you have got the answer that suits you.