Radiant Angel Dragons are known for their intuition—they always seem to know when someone is feeling down, and will do what they can to provide cheer. These dragons are curious and will poke their noses into anything. They communicate with one another by making sounds similar to singing. It is said that the golden feathers shed from their whiskers can rekindle lost feelings of love.

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.

Wrangle Your Rangel is a member of a group of Valentine dragons called the Singing Valentines, who are hired to travel to a recipient or audience's territory to sing and perhaps deliver a gift. The oldest of the Singing Valentines, Wrangle is seen as the wisest of them and is the one to decide the travel route to take in February when there are more assignments and the journey is more complicated than usual. He has an excellent memory and can keep various lists, names, and locations in his head, and he can adjust a performance on the fly by reading the audience's feelings. The only suggestion that Wrangle has made for the Singing Valentines that they refuse to listen to is calling their songs "Valentunes" and renaming the group "Singing Valentunes". They understand his clever wordplay and even call him a "wise guy" for thinking of it, but they still prefer the current moniker.