Pokémon Dragon Master

The unstoppable dragon army—
Yu Ryusuke has traveled through, into a familiar and unfamiliar world - Pokémon!
The god of the sky galloping in the sky, the dragon of the earth running on the earth, time, space, ideal and reality are all under the control of the dragon;
A powerful elves can form an army by one person, and can be powerful enough to defeat a country, and the trainer who can order them can do whatever they want; the legendary beasts that symbolize the rules are like walking disasters, exercising their own powers and responsibilities!
The only thing he can do for Yuryusuke, who is named 'Dragon Royal', is to become the strongest dragon leader, but——
"Since the other party's elf is not easy to solve, let's solve the other party's trainer first, Chao Meng!"...