Half a clear breeze

Chu Xuan transmigrated to a fantasy world and became the young master of a powerful family. He was rebuked for misbehaving just because he sneezed during a banquet. As punishment, he was banished from the ancestral mansion and was relocated to a remote residence.
He did not mind the punishment at all. He just needed a spot that could allow him to be a shut-in. With the system that would allow him to grow stronger by being a shut-in, the longer he stayed indoors, the more powerful he became.
After being a shut-in for a day, he was rewarded with the Indestructible Body Technique.
After being a shut-in for a month, he was rewarded with the Immovable Mountain Technique.
After being a shut-in for a year, he was rewarded with the Yuxu Celestial Scripture and 100 years of cultivation.
After being a shut-in for 10 years, he was rewarded with the Chaotic Indestructible Body and the Bell of Chaos.
…
Chu Xuan declared, “No one can make me leave my home. I like being a shut-in!”

I Stayed At Home For A Century, When I Emerged I Was Invincible

Could it be that he had found a powerful backer?

Could it be that he was really confident despite being surrounded by the various races?

Even if the celestial and immortal race did not participate, enough demon race supreme experts had returned to completely overrun the human race's forces.

He was known as the first ancestor of the human race, but he was not too strong.

However, he was unparalleled in his schemes and was good at seducing female experts.

The battle against the human race was about to break out.

Ji had been watching silently, and did not show himself. He was focused on comprehending the insights within the jade talisman Chu Xuan had given him,

These experts had all come for the changes in the nine zones. However none of them knew that these changes were related to the Supreme Lord.

Breaking Through, Chaos Supreme Realm