Magic used to only exist in the higher realms and, by a god’s mistake, had appeared down the Overworld. The sudden increase in Mana particles has resulted in disasters across the universe. Now that the Mana has become stable, almost every life in the Overworld had been granted the ability to use magic.
This is a story about a lazy person. First, he is known for being a genius scientist, then an Arena Breaker, then a friend of the Supreme Leader, then… The more things people discovered about him, the more of a mystery he became. Now they wondered why a person like him stayed hidden. Those who wondered was one of the few people that knew a fraction of his truth.
Yet, that person was very simple. Ignore what people knew and what they wanted to know. His only desire was to sleep through the day. He will use everything he has to secure a good sleep time without being bothered.
Not the best but...
Magic used to only exist in the higher realms until a mistake by one of the gods led it to appear in the Overworld. The sudden increase in Mana particles initially resulted in numerous disasters across the universe, but over time, the Mana became stabilized, with with every lifeform in the Overworld becoming dependent on it.
That's about it. Hard to write more. You gave a character profile. Not about how first paragraph related to what conflict the character will become involved with.
The Vaha Empire invaded Earth. For a thousand years, Earth was under their rule. But one day, a strange phenomenon happened that changed the whole universe: the appearance of Magic, and the introduction of the Celestia system. How did the humans use the new power to take their independence back? What did they do after gaining it?
Sounds like two very different story plots. Really depends on what you choose. Since I don't know much of your story go off on. That, and gotta call it a night.