At a young age, (y/n)'s parents were both assassinated, leaving her in the care of her aunt, the Handler. She grows up with the Commission, learning to fight and defend herself, yet is never put on the field until Five joins the Commission. Five and (y/n) become partners, until Five leaves her in favor of completing missions on his own. (y/n) is left confused and hurt and is pulled back into working for the management department. That is, until Five betrays the Commission and (y/n) is sent by the Handler in secret to go after him and bring him back.