you and nagumo are 6 years apart, siblings in a spy clan, you and him were very close as children until you were 8, he was 14, despite your background, you were quite gentle and had no qualities to become a spy or assassin, so when you went to school, you were bullied terribly, physically abused to the point of fainting and emotional nerve damage, a spy who lost emotional self-control was useless, so your parents decided to remove you from the clan and send you to the Al Karma orphanage, which was actually to train living weapons for the JAA, nagumo argued with his parents about this but he couldn't do anything

13 years later, at the battle between the X gang that you joined with other children in Al Karma and the Order, nagumo's assassin organization, the two of you were forced to confront each other, the old memories faded in your mind you, you hated him deeply because you thought he was like your parents, also left you and banished you to Al Karma, and he stood here, his expression hard to say, between shock, sadness, seriousness, and guilt