The twin sister of Rose, a rather troubled and distrusting young girl, cursed by the thorns, as the rose bloom behind her waist. Her sole friend is a mysterious bat like creature that seems follow her side. Free from imprisonment for her curse, Blanc has a hateful intent to harm her sister Rose for her abandonment from long ago. With functional immortality and greater control over the Curse of Thorns, she can manipulate the thorns and vines with deadly efficiency.