Binja - The Power Crystals Saga, #1

Thousands of years in the future, mankind is slowly recovering from devastating wars. The world is full of new monsters and strange powers. A shadow has fallen across Japan. Fifteen-year-old Binja has been thrown into a dangerous quest to avenge the death of his mother and save the people. He must risk his life to acquire the magics he needs to rid the land of The Shogun of the Night. But even with a dragon by his side, he may not be ready.