Seal the sky, seal the land, seal life and death.
Lock gods, lock demons, lock reincarnation.
After the Blue Star Catastrophe, the world seems to have changed. Spiritual energy has revived and monsters are rampant. Humanity's living space has been continuously compressed, and high walls have been built to resist the monsters.
Later, martial arts flourished, and some "awakened ones" even appeared. They were so powerful that they were called new humans by ordinary people, and that year was also called the first year of the new era.