章 3797: Treasure Selection

"I've already broken the first restriction of sword principle. As for the second restriction..."

Jian Wushuang also tried to break the second restriction, but after trying, he shook his head helplessly.

"The second restriction of sword principle is probably ten times more complicated and difficult than the first restriction of sword principle. It's extremely difficult for me to break the first restriction of sword principle. I don't know how long it will take to break the second restriction." Jian Wushuang sighed.

It took him 4,000 years to break the first restriction of sword principle alone.

This was because he had a certain level of comprehension of sword principle origin, so he was able to study it step by step.

The second restriction contained more profound sword principle universe origin, so it was more than ten times more difficult to break. Jian Wushuang was not confident that he could break the second restriction in a short time.