Vanessa

She is a hero of the demon race and a succubus, yet extremely belligerent and highly adept at powerful sorcery. According to the official history, she was allied with Sid, though the reason for this relationship remains unknown. In an alternate history, it is said that just before her death, she regained the memories of the official history, was entrusted with the Code Holder by Sid, and guarded it in a mausoleum.