HEAVENS SLAYER HS

The world has gone through a drastic change. People are blessed with heaven's blessings and are born with abilities. In this vast world, there are different persons fighting within themselves for different reasons.
Aoki Arata - Ability unknown. Said to be the strongest. Weaker than the boss.
Arsenal - space manipulation. Serves the boss.
The boss -???
The battle that shook the gods, begins now!

This story moves through different time periods and the characters, story setting, and everything else changes from generation to generation. The first generation is just a prologue.