Daydream Dragons are the hosts of daydreams and fantasies. They spend the majority of their time sitting on clouds, dropping daydreams down into the minds of people passing by. Humans who live near Daydream Dragons must be especially careful not to let their thoughts wander, or they could end up spending hours or even days in a trance-like waking dream state.

Dragons are highly-intelligent reptilian creatures that—from a human perspective, at least—appear to live forever. Many different varieties of dragon exist, each with their own unique qualities, habitats, and behavior. Adolescence in dragons is usually marked by the growth of a hatchling’s wings, although not all breeds of dragons grow wings and some breeds have other traits that indicate the beginning of maturation. In Galsreim, dragons and humans coexist peacefully.

As a professor of Impractical studies at Seven Questions University, Philophantasia's tendency to make his students daydream rarely interferes with their work. In fact, many students come up with great breakthroughs for their own projects while they are supposed to be listening to how he theorises that some arbitrary trope used occasionally in the romance genre impacts society at large. When grading papers, he tends to be daydreaming anyways, so he doesn't notice problems in papers written by students that were clearly not paying attention to him. He spends a lot of time reading, researching, and putting out questionnaires about romance novels. He is proud of his Valentine's ancestry and believes anything he can do to increase interest and excitement about romance is important. In his mind, true love and eggs have nothing to do with each other. He hates eggs and babies and wants nothing to do with them.