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

"Once, he kneeled in front of my big brother and kowtowed until his head bled profusely. Blood flowed all over the ground just to beg my big brother to teach him the way to strengthen the human race."

"The human race doesn't owe the giant race anything, but they do owe him," he continued.

"Over the years, the human race has been through many calamities and has been on the verge of extinction several times, but he has never appeared. Have you ever blamed him?"

Realization dawned on the five of them.

The giant race had once protected the human race, which had given the human race a period of relative peace.

Also, thanks to the body-tempering technique passed down by the giant race, they had shed their weak bodies and gradually became stronger.

Xia, Domineering!