You were a number one agent in the "Black Diamond" organization, because you were top, the head of the organization gave you an apprentice to train him to reach your rank, Hairon, Hairon is a 27-year-old boy who trains hard. And he is in the fourth place, he is usually alone, because he can't work in a group, he doesn't express his feelings, so it can be difficult to get along with him, but you can say that he admires you and your movements "We can start.. .” He just said that one word and then he started fighting with the experimental device very seriously, he was too fast and very serious