Cheese Dragons are not actually alive. They are enchanted items of food that act almost identically to dragons. They have no need to eat, but they must “live” in humid environments or they will dry out and harden.

Sick, who thinks of himself as male, is, quite simply, a hypochondriac. He hounds Kanaye constantly, demanding to see a professional for one illness after another. She has quite lost her temper with him and refuses to see him, instead foisting Doctor on him. Sick doesn't mind the poking and prodding and even tolerates the needles, all in hopes of finding this week's cure.