Apa Lagranges, Corticarte

コーティカルテ・アパ・ラグランジェス

The spirit with whom Tatara made a contract. Known to Phoron as Corti, she is one of the oldest spirits in their world, possessing six wings and bearing the title of Red Elder Spirit, among others such as Crimson Annihilator or Bloody Duchess. Captivated by young Phoron's singing voice, she decides to form a pact with him so that he will belong solely to her.
For the most part, Corti appears as a child. She has a selfish nature and dislikes it when Phoron shows kindness to other girls.