Hello,
https://www.webnovel.com/book/mythological-system_27605440300520505
Synopsis:
In a universe where Gods rule over, born on the Earth, Leon. In this universe, everyone living under the Gods had to obey their absolute rules. The first and foremost rule was being at the Goddess's Statue during prayer day, no matter what. That was what the Absolute Ones ruling over them wanted from their people in exchange for knowledge, power, and technology.
The universe had many different kinds of intelligent races; Zetas, the gray aliens, and Reptilians, lizard-like humanoid people, were just two of the many races walking among the streets with them. This was Leon's normal. However, his normal crumbled to the dust on one fateful day, only to darken his heart.
This is the story of a boy taking over the sword of vengeance and freedom against the Divine Ones along with his comrades.