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

What would the Great Dao calamity be like?

The system's reward suddenly appeared again.

"Your disciple, Xiang Xing, has comprehended the Fire Great Dao rune and fused with the origin essence of a chaotic being. He has become a chaotic being and a descendant of an Ancient Chaos God. You have been rewarded with the Dao path secret technique, Heaven Imprisoning Fire Cage."

Xiang Xing had comprehended the Fire Great Dao rune and fused with the origin essence of a chaotic being?

Furthermore, what was with the descendant of the Ancient Chaos God bit?

The first batch of living beings born in the chaos were born with the ability to control the laws of the Great Dao.

They were born as Daoyuan realm experts.

Great Dao Runes