My beast can't be a Pokemon

Introduction: One day, the heaven and earth changed, countless alien spaces appeared in the world, and countless alien beasts appeared to wreak havoc on the world. Human technology is retreating steadily. People with great wisdom and ability control alien beasts and call themselves beast masters. Since then, they have created an era of beast masters, fighting alien beasts with alien beasts, and exploring a new way of life for mankind. By chance, Gu Shengli, a man from Earth, traveled to this world with the Pokemon system. What changes will it bring to the world? Let Xiao Mo speak slowly! [Tag]: Beastmaster, Pokémon, Pokemon