"I love you, Ryuji!" Boy meets girl, along with love and war!
Ryuji, a high school student, quietly lived alone due to the fact that his parents were living overseas. However, when his second cousin, Eriko, returns to Japan, his life changes drastically.
Interaction with an underground broker, "Fang"...
A fateful encounter with a mysterious but gorgeous girl, Rose...
On top of all that, it is revealed that Rose is a legendary Red Dragon. To make matters even more complicated, she falls madly in love with Ryuji!
New characters are introduced one by one, all who are after Rose and the relics known as "Lost Precious."
Now begins the story of Rose and Ryuji!