The Chronicle of Shangrad

Translated from the original website:

"Shangrid is a world in which the gods rule humans, a state where the gods are standing.
People live every day without doubting their rule. But now, some people have turned their rebels to the gods.
The name is Umer.
An atheist who first appeared in this world.
He started a struggle with his fellow goddesses with a slightly disappointing personality to uncover the deception of the gods!
Relying on the distorted personality and breast strength…
The story.
Fantasy action manga with Hindu mythology as a motif."