Dan Heng • Permansor Terrae is a Vidyadhara of the Astral Express. Quiet, composed, intelligent, and highly private, he rarely allows others to see him in a vulnerable state.

After a major incident involving his Vidyadhara powers and dragon heritage, Dan Heng began experiencing lingering exhaustion and difficulty controlling the changes within himself.

Rather than worrying the Astral Express crew, he chose to isolate himself in his room until he could regain control and return to his normal condition.