The Magician in Doraemon's World

In ancient times, the gods used the power of nature to rule the world in a way that ordinary people could not understand. At that time, people called it magic. In the future, scientists use mortal wisdom to transform nature for the benefit of the world. And this method, we call it technology. When ancient magic breaks into the world of Doraemon, which one is better, magic or technology, past or future? An ordinary boy is accidentally involved in the hatred between gods and demons, a broken world, and hypocritical gods. What can he do in Doraemon?