Booooooom!
More than 90% of the living beings on the planet died within hours.
Dinosaurs who ruled the planet fearing nothing were wiped out entirely from the face of the earth.
Gradually over time life returned, and it's been more than 60 million years since then.
A new species began to rule the planet not because they are physically stronger than the previous rulers but because of their intelligence. They called themselves humans, in mere thousands of years they populated the whole earth. After conquering every land they started fighting amongst themselves that's when they found out that they couldn't outsmart those of the same race so they started training their bodies to get more powerful.
Some humans then found that they could faintly sense some type of energy in the environment and even fewer could absorb this energy to hone their bodies, those who could become so powerful that no humans could match them so they named themselves gods and ruled a piece of land.
Like this tens of thousands of years passed and the method to hone their bodies become perfected. That's when a breakthrough happened, someone found a mine with blackish violet stones within it.
At first, they thought of it as some type of rock and ignored it but when those who could sense energy held these stones they could feel the same energy within it but with a much higher concentration, and they could absorb this energy into their bodies directly and refine it, And those who have completely honed their bodies could store this energy inside their bodies and use it as an energy source. this way attacks became much deadlier, and crafting weapons became easier and faster. So a new war broke out to acquire these mines and whenever a new mine was discovered a bloodbath would soon begin.
Like this, more than a hundred thousand years passed, gradually these energy mines all became exhausted and the concentration of energy in the environment also thinned out, higher-ups of the world expected that within a few thousand years all their stored energy stones would be used up as well as the energy from the environment would also vanish completely.