Tsunami Wyverns are gigantic dragons that live near the ocean. These wyverns can create deadly tsunamis by vigorously flapping their wings directly above the water. They create these waves to catch the eye of potential mates or as a form of self defense, as they are hunted for their beautiful skin. A Tsunami Wyvern’s wings are also helpful in gliding over the ocean without expending much energy. Their colors make it easy for them to blend in with the ocean water, which can be useful while stalking prey. Using their rudder-like tails and webbed feet to dive deep into the water, they can easily catch and eat their fill of big fish. Tsunami Wyverns can be found mostly near island chains.

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.

Korudo, meaning "cold", embodied the name he was given. Originally a warm and kind Tsunami Wyvern, trial and error with the wrong sorts of dragons and humans turned him into a remorseless creature. His heart a stone of ice, and his glare an icy stare, Korudo would freeze his prey just by looking at them; his prey froze in fear. Due to his cold demeanor, many found it surprising, shocking even, that he would ever find a suitable mate. While many avoid Korudo, -indeed, his personality is rather distasteful to others-, Blunamus did no such thing. The clumsy Blusang Lindwurm, ever amiable and mischievous, took it upon her duty to woo the distant Korudo. At first, Korudo saw through her ploy and was disgusted. Yet, as clumsy as ever, Blunamus accidentally found herself quite in love with a Tsunami Wyvern whose heart was, in turn, slowly melting into a puddle.