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

"Study it well. I will continue to patrol the myriad realms. I hope that when I see you again, you will have already comprehended it," Chu Xuan said.

"Farewell, Senior!" Ren Changhe said respectfully.

Chu Xuan affixed one of the marks of the Myriad Heavenly Mirror on Ren Changhe's body.

When he realized that Ren Changhe did not display a reaction to the mark, he heaved a sigh of relief. It seemed like the mark of the Myriad Heavenly Mirror could not even be detected by a peak Heaven realm cultivator.

After cutting off the spiritual power infusion, the Myriad Heavenly Mirror reached its daily usage limit.

"You have crossed realms to trick Ren Changhe. You have been rewarded with the Yin-yang Combination Divine Seal."

The system reward soon followed. Chu Xuan immediately examined the Yin-yang Combination Divine Seal