Momoka Sendou (nicknamed "Dragon Girl") and Ryuga Kou are childhood friends. Momoka is a martial artist, and Ryuga is a Chinese magic master who banishes demons. In order to increase his power, Ryuga calls on the spirit of a dragon to possess him, but the spirit enters Momoka instead. Now the two must unite forces and fight demons together!
Momoka's dragon takes on the form of a beautiful man and warns Ryuga and Momoka of dangers facing the Kou family. But the dragon also has something else in mind--he wants Momoka to become his mate! Can Ryuga compete against a dragon for Momoka's affections?