Heartseeker Dragons are very social creatures that emanate a sweet chocolatey scent. Their captivating perfume easily attracts adult dragons that don’t yet have a mate. Heartseekers use their keen sense of smell to detect solitary dragons and potential mates in the area. By rubbing their fins against objects such as trees and rocks, they leave a scent trail for the other dragons to follow to meet each other. Although these dragons are seen year-round, the scent of a Heartseeker becomes particularly potent during the middle of winter. During this time, a single Heartseeker may play matchmaker to dozens of dragons, but he will also choose a special mate of his own.

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.

Cad Bury Heart has a life's mission. It is to make others aware of his "Great Truth". This Truth is that love is not in any way connected to gifts, or flowers showered upon the object of one's affections. It is the look one gets in one's eyes when their love is near, the spark that passes from one to one's love when they touch, the complete need of one for another, and the loss of one's own desires in one's desire for the loved one's happiness. Though gifts may be intended to signify these things, gifts are in no way necessary when two share these things. While other Valentine dragons may stress all the gifts lovers exchange, Cad Bury Heart stresses the sharing of feelings instead.