Mercurius

Mercurius is the Fourth Heaven and an overarching antagonist in Dies Irae. He also appears in the story in the guise of two of his Sensories, being Karl Ernst Krafft for most of the narrative, and Cagliostro at certain times. Mercurius is an androgynous man with long, dark blue hair. He is noted to greatly resemble both Ren and Lotus in an uncanny way. His Sensories share a similar appearance to him as well, though each has slight differences. He is most often seen wearing long, tattered black robes, but throughout the series he has also appeared in a variety of other outfits, such as a dark ...

Mercurius strives to achieve the unknown, not because he wants to learn more, but because he is hopelessly bored. He naturally possesses a relaxed, calm and manipulative demeanor, something that infuriates virtually everyone that he come into contact with. He is also philosophical and poetic and has...