Celestial Apocalypse & Rebirth

This story takes place in the new world developed by the human unity alliance after the sudden invasion of celestial beast or more commonly known as Zmons no one knows how the got their but after a sudden explosion of sudden explosion of unknown origin in the middle of the pacific ocean.
We follow Issac Nomrad this cultivation in this world.

Note: this is just for fun and to fill spare time, so don't expect me to do any thing great.
I'm also new at righting stories so give me some advise.