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 saved Qin, and Qin completely transformed into a divine being of the Heavenly Dao.

Furthermore, given Qin's personality, he would definitely wander the chaos and think of ways to strengthen the Heavenly Dao in order to become stronger himself.

Chu Xuan even gave him a little teaser.

The Heavenly Dao had the potential to become a supreme law of the chaos.

This also meant that once the Heavenly Dao became a supreme law of the chaos, as a divine being of the Heavenly Dao, Qin would also become a chaos supreme realm expert.

This further ignited Qin's fighting spirit.

In order to become a chaos supreme realm expert, he had to think of ways to strengthen the Heavenly Dao.

In fact, he even tried to comprehend the supreme laws of the chaos while inside the Heavenly Dao and guide the supreme laws to descend.

Crisis