User blog comment:B214/Light Novel Volume 16 spoilers/@comment-75.93.25.66-20140105180833/@comment-1359322-20140106004938

......No. It won't be Sairaorg. Evil Piece can only reincarnate those that died recently. Unless if Sairaorg was there to reincarnate Valerie on the spot, it is impossible. Also as to whether or not Valerie died, read the continuation first. I won't be giving any spoilers for now.