One day, Mayoi went on an excavation at the request of his grandfather. She accidentally unearths the Ryuujin Blaster, where the legendary dragon god resides. Suddenly, the Desmos army appeared all over the world at the same time. The Desmos army also attacks Mayoi. There, a humanoid cat (Meowon) appears and orders him to fight with the Ryujin Blaster. Mayoi doesn't understand the reason and defeats the Desmos army in a frenzy. Nyaon then raises Mayoi and grows her as Ryujin Violet. Will Mayoi be able to save the world? I'm amazed to see it! ［BAD END］