The Almighty Control System

The Almighty Control System,

The Great Emperor of Heaven is the ruler of the entire universe, being the oldest god ever. He rules the whole universe by domination with the title of the strongest god ever.
However, at the end of his life, he was suddenly betrayed by his god of faith.
He was killed suddenly, he was angry. Dead with regret and anger.
But he did not die, instead reborn into the mortal world.

Realizing he was not dead, he was determined to revenge.