Covering the sky with bare hands

The story takes place in a continent supported by the legendary phoenix skeleton. This continent is vast and has many countries. Recently, in the far west of the mainland, seven volcanoes that had been dormant for hundreds of years suddenly experienced violent activity. Raging flames burned into the sky, and the fire just formed a huge phoenix that could cover the sky. What is even more mysterious is that the head of this fire phoenix suddenly fell from the sky after burning for seven days, and perished between heaven and earth...