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!
Mio has severed the red string of fate between Ryuga and Momoka that destines them to be soul mates. Momoka wants to tell Ryuga she loves him, but he has fallen victim to Mio's magic spell. Will Momoka be able to repair her and Ryuga's destiny?