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

Hong Yuanchu suddenly realized that although he was one of the people who led the human race to rise to become an overlord race of the nine zones...

The experts who had led the human race while they were weak, and established them as a strong race in the nine zones, had all disappeared.

"Daoist Brother Chu, I just remembered something. When I was about to open my Dao path, a demon expert tried to kill me, but an unknown human expert blocked him."

"I only had a quick glance at that time. Later on, I heard that the human expert who attacked was the son of the Ji family's human king, a Daoyuan realm expert."

Chu Xuan's expression became strange.

Hong Yuanchu was a Daoyuan realm expert. Why was his memory so poor to the point that he only remembered this incident after being prompted?

He had probably been affected by some sort of strange power, resulting in these memories fading into the back of his mind.

Secrets Of The Daoyuan Realm