The routine of fantasy novels is basically as follows, similar to the cryptocurrency circle:
1. A young man from a small mountain village starts an adventure for a certain goal
2. Defeat increasingly powerful opponents and practice more skills
3. Become the strongest person in this world and accidentally discover the mask
4. Break the mask and find that the world is just a furnace in the upper world
5. Practice in the lower level of the upper world and become a powerful person from the lower level
6. Touch the mask again... (Can be repeated n times according to the author's wishes)