Kasee is a young wyverian who, unlike her brother and sister, has more wyvern traits than human traits. She takes pride in her appearance and spends alot of time caring for her feathers, scales and claws when she is not researching or training kinsects for her sister Riva. She loves flowy garments like dresses and skirts, especially those that have an insect motif. She loves traveling in search of new and unique insects. Her dream is to travel to the Old World and see the giant neoptoran monsters despite her fear of the larger creatures in their world.

Kasee was born in a small wyverian village in the new world. Growing up she was seen by the village as somewhat of an omen of prosperity due to her prominant wyvern traits. When Talak and Riva started training to become hunters she started training along with them as a handler and traveling with them. Nowadays she will still train and care for Riva's kinsects but she works as her girlfriend Nina's handler. Nina and Kasee met during an expedition when Kasee stopped Nina from killing a monster and talked her into capturing it instead. Nina had never seen a wyverian that looked like her and Kasee had never met such a gorgeous hunter and the two formed an instant bond. Kasee learned much about the old world and their outlook on maintaining ecosystems and Nina learned about the wyverians more investigative approach to handling threats to the balance of nature.