Melin Cavendish is one of the Executors of Anti-Entropy, codenamed "Magician". They are elusive and mysterious, with excellent cross-dressing skills and good at disguising themselves. At the same time, They are also a member of the Schicksal and the head of the Cavendish family. They are lurking in Schicksal, and they often bring beneficial information to the Anti-Entropy. However, Melin have their own army in private, called the Knights of Apocalypse, waiting for opportunities to destroy both Schicksal and Anti-Entropy.
With hatred for both Schicksal and Otto. From the moment they were born, they were bound by the curse of Schicksal, longing for revenge from within Schicksal. What Melin expects is the transformation of the whole world, so that people who are bound by history can regain their freedom. Although Melin hates Otto, they have the same opinions as him.
As a master of magic, they also like magic very much, and once left Bronya Zaychik a set of magic tutorials and props.