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

Chu Xuan was confused. Since they were not enemies, why did the human race of the nine zones not have any legends about the giant race?

Fortunately, Daoist Flying Cloud knew the answer to this.

When the giant race entered the nine zones, they were extremely powerful. They occupied large swathes of territory and protected the weak human race at that time.

This was not unnatural, as giants and humans looked identical other than the size difference.

Furthermore, after the human race had cultivated the body-tempering technique of the giant race, their bodies had started to become stronger, as well as larger, which reduced the differences even further.

The human race was born weak, but they were indomitable. They somehow survived the various calamities.

Chaos And The Nine Zones (Part 4)