Saki Yagami is a staff-member of Kichijouji Seijou Gakuen's newpaper and Yousuke Miura's girlfriend. Through Yousuke, she becomes close friends with Kojiro Souma. Her body possesses massive amounts of Magnetite, which attracts Akito Kobayashi and Marika Kusaka's attention. This makes her a primary target for those seeking to bring Ose into the world and while she is rescued when kobolds attack her, she is eventually kidnapped by Akito.