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

Why did he not realize that Mo Tu had such a trashy mouth?

"Daoist Brother Chu, Mo Tu is too impudent. Why don't we expel him?"

In the end, Hong Yuanchu sought out Chu Xuan.

The members of the Great Dao Communication Group could not leave once they entered. Perhaps only Chu Xuan, the group leader, could expel them.

The corners of Chu Xuan's mouth twitched. There was no way he was going to expel a troll like Mo Tu!

The other party was a Daoyuan realm cultivator, and a troublemaker.

One look was enough for anyone to tell that he would be a constantly active member of the group. In addition, with him in the group, it would be livelier.

Only when one's Dao aura gushed out would he be able to obtain more Dao aura to nurture the Origin Dao Crystal.

The losses from expelling him would be huge.