"Boom!"
The Heart Sword pierced into his body, like a bolt of thunder, instantly causing a sharp pain in Tianxin's mind.
How refined was Tianxin's spirit?
Even when Saint Origin One had repeatedly used the Heart Sword to slash at Tianxin's spirit, it couldn't shake Tianxin's resilience.
But now, Tianxin felt as if his spirit was being torn apart.
"The Heart Sword?"
Tianxin's expression finally changed.
He was well aware of the Heart Sword's terrifying power.
The fact that Saint Origin One's Heart Sword couldn't affect his spirit did not mean the Heart Sword was weak.
On the contrary, the Heart Sword was incredibly strong.
As the Heart Sword Sect's supreme secret legacy, how could the Heart Sword be weak?
The only weakness was Saint Origin One himself.
Just because Saint Origin One's Heart Sword couldn't shake Tianxin's spirit didn't mean Lu Changsheng's Heart Sword couldn't.