Lowest heaven is a place that is infamous for the most dangerous dungeons of all sky realms. Since Helsia is situated at the very bottom of the heavenly realm, it was easy for the god of dungeons to install dungeons as he wished in the past.
In the past, Helsia was the land of dungeons ruled by a noble god of dungeons, Ashter.
He was a god that loves to give out his inventions to the immortals and demigods so everyone can level up and live together in the realm of gods.
At first, everyone liked the fact that everyone will live in the same place despite their status. But later, it turned into a disaster.
Everyone then wished to become a noble god and rule the lands with the power they acquired from Ashter. They all wanted to become gods by using a cheat that Ashter made for free.
So Ashter thought about a good plan and started to make dungeons. His plan was to give out his inventions through dungeons to the worthy person.